| {"sample_id":"CBX100_0001","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"stepped rectangular mounting bracket","visual_features":{"openings":[{"type":"circular through-hole","count":4,"location":"one in each corner mounting lug"}],"recesses":["shallow channels alongside the long upper rail"],"protrusions":["raised central rectangular platform","four corner mounting lugs","long upper bridge or rail"],"repeated_structures":["four matching holed mounting lugs"],"symmetry":"approximately bilateral about the longitudinal and transverse center planes","surface_character":"predominantly planar with cylindrical hole walls"},"visual_caption_en":"A stepped rectangular mounting bracket with a raised central platform, a long bridge-like upper rail, and four projecting corner lugs. Each lug contains a circular through-hole, and shallow channels run beside the upper rail. The layout is approximately symmetric in both principal plan directions.","visual_caption_zh":"该零件为阶梯式矩形安装支架，中央有抬高平台，上方设置纵向桥式长导轨，四角向外伸出安装耳。每个安装耳上有一个圆形通孔，长导轨两侧可见浅槽，平面布局近似双向对称。","feature_tree_hint":["rectangular base extrusion","central boss extrusion","four lug unions","four through-hole cuts","upper rail extrusion","channel cuts"],"confidence":"high"} | |
| {"sample_id":"CBX100_0002","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"three-sided corner bracket","visual_features":{"openings":[{"type":"circular through-hole","count":1,"location":"main vertical wall"},{"type":"semicircular edge cutout","count":1,"location":"front edge of horizontal base"}],"recesses":["two open vertical U-shaped edge notches separating side tabs"],"protrusions":["two perpendicular upright walls","narrow terminal side tabs"],"repeated_structures":["paired upright edge tabs"],"symmetry":"asymmetric overall corner layout","surface_character":"planar sheet-like walls with cylindrical and semicylindrical cut surfaces"},"visual_caption_en":"A three-sided corner bracket formed by a horizontal base and two perpendicular upright walls. One wall carries a circular through-hole, the front edge of the base has a broad semicircular cutout, and open U-shaped notches isolate narrow upright tabs near the outer edges. Thin perimeter lips are visible along several wall edges.","visual_caption_zh":"该零件是由水平底板和两块互相垂直的立板构成的三面角支架。一侧立板上有圆形通孔，底板前缘有宽大的半圆形缺口，外侧还有开口U形槽将窄立耳与主体分隔，多处边缘带有窄翻边。","feature_tree_hint":["base plate extrusion","two perpendicular wall extrusions","circular through-hole cut","semicircular edge cut","paired U-notch cuts","edge lip extrusions"],"confidence":"high"} | |
| {"sample_id":"CBX100_0003","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"long grooved rail","visual_features":{"openings":[],"recesses":["two long parallel top channels"],"protrusions":["two longitudinal ribs","raised transverse end stops"],"repeated_structures":["paired longitudinal ribs and channels","matching end blocks"],"symmetry":"strong bilateral symmetry along the rail centerline and approximate end symmetry","surface_character":"predominantly planar prismatic surfaces with small rounded end transitions"},"visual_caption_en":"A long, narrow rectangular rail with two parallel longitudinal ribs separated by recessed channels. Raised transverse stops cap both ends, and small rounded transitions join the rails to the end blocks. The part is strongly symmetric about its long center plane and approximately symmetric end to end.","visual_caption_zh":"该零件是细长矩形导轨，顶面有两条平行纵向凸筋，其间及两侧形成连续长槽。两端由抬高的横向挡块收口，导轨与端块连接处有小圆弧过渡，零件具有明显的纵向中心对称性。","feature_tree_hint":["long rectangular base extrusion","two longitudinal rib extrusions","two channel cuts","two transverse end-stop extrusions","small transition fillets"],"confidence":"high"} | |
| {"sample_id":"CBX100_0004","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"four-arm saddle-shaped cross","visual_features":{"openings":[],"recesses":["deep central saddle valleys between opposing arms"],"protrusions":["four thick radial arms","sharp central fin-like ridges"],"repeated_structures":["four arms arranged as two crossing pairs"],"symmetry":"approximate fourfold rotational symmetry around the vertical axis","surface_character":"mixed planar end faces and strongly curved saddle-like transition surfaces"},"visual_caption_en":"A thick four-arm cross with broad rectangular arm ends and a sculpted central junction. Curved saddle surfaces sweep downward between opposing arms while sharp fin-like ridges rise along the crossing directions. No through-opening is visible; complexity comes from the doubly curved central transitions and fourfold repetition.","visual_caption_zh":"该零件为厚实的四臂十字形结构，四个臂端为宽矩形，中央连接区经过雕塑化过渡。成对臂之间由下凹的鞍形曲面连接，交叉方向上形成尖锐脊线；未见通孔，复杂度主要来自双曲面和四向重复。","feature_tree_hint":["four-arm cross base","fourfold polar pattern","lofted or swept saddle transitions","central ridge blends"],"confidence":"high"} | |
| {"sample_id":"CBX100_0005","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"tall half-cylinder prism","visual_features":{"openings":[],"recesses":[],"protrusions":[],"repeated_structures":[],"symmetry":"bilateral symmetry through the longitudinal mid-plane","surface_character":"one semicylindrical outer wall, one flat longitudinal face, and two D-shaped planar end faces"},"visual_caption_en":"A tall D-section prism equivalent to a half cylinder extruded along its axis. It has one broad flat longitudinal face opposite a continuous semicylindrical outer wall, with flat D-shaped end faces and no visible holes, slots, steps, or repeated details.","visual_caption_zh":"该零件是沿轴向拉伸的D形截面棱体，等价于纵向半圆柱。一侧是宽大平面，相对一侧为连续半圆柱曲面，两端为D形平面，未见孔、槽、台阶或重复细节。","feature_tree_hint":["D-shaped sketch","single linear extrusion"],"confidence":"high"} | |
| {"sample_id":"CBX100_0006","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"pointed diamond plate with annular bosses","visual_features":{"openings":[{"type":"axial circular through-hole","count":3,"location":"through three raised annular bosses"}],"recesses":[],"protrusions":["three cylindrical annular bosses aligned along the centerline","shallow central faceted ridge"],"repeated_structures":["three evenly spaced hollow bosses"],"symmetry":"bilateral symmetry about the long center plane","surface_character":"thin planar faceted plate with cylindrical boss walls"},"visual_caption_en":"A thin, elongated diamond- or leaf-shaped plate tapering to sharp points at both ends. Three evenly spaced hollow cylindrical bosses rise along its centerline, each with an axial circular through-hole. The plate has a shallow faceted ridge and is bilaterally symmetric about its long axis.","visual_caption_zh":"该零件为细长菱形或叶片形薄板，两端逐渐收尖。中心线上等距排列三个中空圆柱老板，每个老板都有轴向圆形通孔；板面带有浅的分面棱脊，整体关于长轴双侧对称。","feature_tree_hint":["diamond plate extrusion","three-boss linear pattern","three coaxial through-hole cuts","shallow ridge or loft"],"confidence":"high"} | |
| {"sample_id":"CBX100_0007","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"long U-ended mounting frame","visual_features":{"openings":[{"type":"transverse circular through-hole","count":4,"location":"one through each upright end post"}],"recesses":["large open central bay","curved U-shaped pockets between paired end posts","small notches along the long side rails"],"protrusions":["four upright end posts","two long parallel rails","two transverse end bridges"],"repeated_structures":["mirrored two-post end brackets","paired long rails"],"symmetry":"approximately symmetric end to end and about the longitudinal center plane","surface_character":"mostly planar prismatic members with curved U-shaped inner transitions and cylindrical holes"},"visual_caption_en":"A long open mounting frame made from two parallel rails joined by mirrored end brackets. Each end bracket rises into a pair of upright posts around a curved U-shaped pocket, and each post contains a transverse circular through-hole. Small rail notches and reinforcing transitions repeat along the otherwise open central span.","visual_caption_zh":"该零件为细长开口安装框，两条平行纵向导轨由两端镜像支座连接。每个端部支座由两个立柱夹住弧形U形凹位，四个立柱上各有一个横向圆形通孔。长导轨上还可见小缺口和局部加强过渡。","feature_tree_hint":["two rail extrusions","two mirrored end brackets","four upright post extrusions","two U-pocket cuts","four transverse hole cuts","small notch cuts"],"confidence":"high"} | |
| {"sample_id":"CBX100_0008","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"rounded rectangular mounting bar","visual_features":{"openings":[{"type":"transverse circular through-hole","count":2,"location":"spaced along the broad side face"}],"recesses":["narrow longitudinal grooves adjacent to rounded long edges"],"protrusions":["rounded longitudinal edge beads"],"repeated_structures":["two spaced side holes","paired rounded edge beads"],"symmetry":"approximately bilateral about both the long and short center planes","surface_character":"planar broad faces with large rounded long edges and cylindrical hole walls"},"visual_caption_en":"A long rectangular mounting bar with strongly rounded longitudinal edges and two circular through-holes spaced along the broad face. Narrow lengthwise grooves or reliefs run just inside the rounded edge beads, and the end profile repeats at both ends. The layout is approximately symmetric along the bar length and width.","visual_caption_zh":"该零件是细长矩形安装条，两条长边有明显圆弧过渡，宽侧面上沿长度方向分布两个圆形通孔。圆角边条内侧可见窄的纵向退让槽，两端截面基本一致，整体近似纵横双向对称。","feature_tree_hint":["rounded-rectangle bar extrusion","two transverse hole cuts","paired longitudinal groove cuts","edge fillets"],"confidence":"medium"} | |
| {"sample_id":"CBX100_0009","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"open-top rounded rectangular sleeve","visual_features":{"openings":[{"type":"large rectangular cavity","count":1,"location":"open top extending through most of the height"}],"recesses":["deep internal box cavity","narrow vertical relief slit on one outer wall"],"protrusions":[],"repeated_structures":["four rounded vertical wall corners"],"symmetry":"approximately bilateral in plan except for the side relief slit","surface_character":"four planar walls joined by rounded vertical corners and an open rectangular interior"},"visual_caption_en":"A tall, open-top rectangular sleeve or box with a deep internal cavity and nearly uniform wall thickness. The four vertical outside corners are rounded, the upper rim is continuous, and one side wall contains a narrow vertical relief slit. The bottom appears closed while the top remains fully open.","visual_caption_zh":"该零件为高而开口的矩形套筒或盒体，内部是深矩形空腔，壁厚近似均匀。四条竖直外角采用圆角过渡，顶部翻边连续，一侧壁上有窄竖向退让缝；底部封闭，顶部完全开口。","feature_tree_hint":["rounded rectangular outer extrusion","deep top pocket","side relief-slot cut","outer corner fillets"],"confidence":"high"} | |
| {"sample_id":"CBX100_0010","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"coaxial flanged shaft","visual_features":{"openings":[],"recesses":[],"protrusions":["single wide annular flange around the shaft midpoint"],"repeated_structures":[],"symmetry":"full rotational symmetry about the shaft axis and mirror symmetry through the flange mid-plane","surface_character":"three coaxial cylindrical surfaces with flat circular end and flange faces"},"visual_caption_en":"A straight cylindrical shaft with a single wider circular flange centered around its middle. The upper and lower shaft segments share the same diameter, the flange has constant thickness, and all features are coaxial. No bore, keyway, chamfer, or secondary step is visible.","visual_caption_zh":"该零件是带中部圆盘法兰的直圆柱轴。法兰上下两段轴径相同，法兰厚度均匀，所有结构共轴；未见中心孔、键槽、倒角或其他台阶。","feature_tree_hint":["shaft cylinder extrusion or revolve","coaxial flange cylinder union"],"confidence":"high"} | |
| {"sample_id":"CBX100_0011","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"layered organic silhouette plate","visual_features":{"openings":[{"type":"small circular through-hole","count":1,"location":"near one rounded side lobe"},{"type":"large curved opening","count":1,"location":"inside a curled end loop"}],"recesses":["several deep curved notches between projecting lobes"],"protrusions":["rounded central body","multiple limb-like side lobes","curled looped end"],"repeated_structures":["paired side lobes"],"symmetry":"irregular and asymmetric","surface_character":"flat extruded plates with rounded organic plan contours and stacked height levels"},"visual_caption_en":"An irregular, low-profile plate with a rounded central body, several limb-like side lobes, and a curled loop at one end. Deep curved notches separate the lobes, a small circular hole pierces one side, and the curled end encloses a larger opening. Several regions sit at different thickness levels, creating a layered silhouette.","visual_caption_zh":"该零件是不规则低矮板件，中部圆润，周边伸出多个肢状圆角叶片，一端卷曲成环。叶片之间有深弧形缺口，一侧有小圆通孔，卷曲端包围较大开口，多个区域具有不同厚度层级。","feature_tree_hint":["organic 2D outline sketches","stacked plate extrusions","curved notch cuts","small circular cut","loop opening cut"],"confidence":"medium"} | |
| {"sample_id":"CBX100_0012","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"block with curled C-hook","visual_features":{"openings":[{"type":"open C-shaped throat","count":1,"location":"curled end"}],"recesses":["deep rounded hook pocket"],"protrusions":["large rectangular block","thick curled hook","rounded terminal nose"],"repeated_structures":[],"symmetry":"constant cross-section through the thickness but asymmetric in profile","surface_character":"planar block faces blended into cylindrical hook surfaces"},"visual_caption_en":"A thick rectangular block transitions into a curled C-shaped hook at one end. The hook forms a deep rounded pocket with an open throat and a bulbous rounded terminal, while the opposite end remains a plain rectangular face. The shape is largely an extruded side profile with generous curved transitions.","visual_caption_zh":"该零件由厚矩形块过渡到一端的C形卷钩。卷钩内部形成深圆弧凹位和开口喉口，末端圆润加厚；另一端保持平直矩形端面，整体近似由侧面轮廓等厚拉伸形成。","feature_tree_hint":["C-hook side-profile sketch","single thickness extrusion","large transition fillets"],"confidence":"high"} | |
| {"sample_id":"CBX100_0013","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"overlapping clover-petal cluster","visual_features":{"openings":[],"recesses":["narrow valleys between overlapping petals"],"protrusions":["multiple broad heart-shaped or clover-shaped lobes at staggered heights"],"repeated_structures":["approximately six overlapping petal plates"],"symmetry":"radial repetition with rotational offsets, but not a single flat symmetry plane","surface_character":"thin smoothly contoured plates with gentle twist and overlap"},"visual_caption_en":"A clustered rosette made from several broad heart- or clover-shaped petals that overlap around a common center. The petals occupy staggered heights and orientations, producing narrow valleys and a layered, slightly twisted volume. No separate hole is visible; the dominant feature is repeated organic petal geometry.","visual_caption_zh":"该零件由多个宽大心形或花瓣形薄片围绕共同中心重叠组成。各花瓣位于不同高度和旋转角度，形成狭窄谷线和层叠扭转体积；未见独立通孔，主要特征是有机花瓣的重复排列。","feature_tree_hint":["petal outline surface or thin extrusion","radial pattern with axial offsets","loft or twist per petal","central union"],"confidence":"high"} | |
| {"sample_id":"CBX100_0014","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"thin curved annular-sector panel","visual_features":{"openings":[],"recesses":["large concave inner arc forming an open bite in the plan outline"],"protrusions":[],"repeated_structures":[],"symmetry":"approximately symmetric about the sector bisector","surface_character":"thin compound-curved sheet bounded by convex and concave arcs"},"visual_caption_en":"A thin, broad annular-sector panel bounded by a long convex outer arc and a large concave inner arc, with short straight end edges. The panel carries gentle compound curvature rather than remaining perfectly planar, and its thickness is nearly uniform. No holes, ribs, or discrete bosses are visible.","visual_caption_zh":"该零件是薄而宽的环形扇段面板，外侧为长凸圆弧，内侧为大尺寸凹圆弧，两端由短直边收口。面板具有轻微复合曲率而非完全平面，厚度近似均匀，未见孔、加强筋或独立凸台。","feature_tree_hint":["annular-sector boundary sketch","lofted or bent thin surface","uniform thickening"],"confidence":"high"} | |
| {"sample_id":"CBX100_0015","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"double-ended link with raised bridge","visual_features":{"openings":[{"type":"circular through-hole","count":2,"location":"one in each rounded end pad"}],"recesses":["open step beneath the raised central bridge"],"protrusions":["two rounded end pads","raised central rectangular bridge"],"repeated_structures":["paired holed end pads"],"symmetry":"approximate twofold end symmetry","surface_character":"planar prismatic link with semicircular ends and cylindrical holes"},"visual_caption_en":"A compact link with rounded pads at both ends, each pierced by a circular through-hole. A raised rectangular bridge spans the middle, leaving a lower stepped recess between the end pads. The two ends repeat the same rounded-hole motif, while the bridge introduces a second height level.","visual_caption_zh":"该零件是两端圆头的紧凑连杆，两个端部圆头各有一个圆形通孔。中部设有抬高的矩形桥接段，桥下形成较低台阶凹位；两端重复相同的圆头孔特征。","feature_tree_hint":["capsule-shaped base extrusion","two hole cuts","central bridge extrusion","central underside step cut"],"confidence":"high"} | |
| {"sample_id":"CBX100_0016","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"U-shaped fork bracket","visual_features":{"openings":[{"type":"transverse circular through-hole","count":4,"location":"two along each parallel fork arm"}],"recesses":["large rectangular central fork opening"],"protrusions":["two long parallel side arms","thick rear connecting block"],"repeated_structures":["mirrored fork arms","two-hole linear pattern on each arm"],"symmetry":"bilateral symmetry about the central plane between the arms","surface_character":"planar prismatic body with cylindrical holes"},"visual_caption_en":"A rigid U-shaped fork bracket with two long parallel arms projecting from a thick rectangular rear block. Each arm contains two transverse circular through-holes arranged in a line, for four holes total. The large rectangular opening between the arms remains unobstructed, and the two sides mirror one another.","visual_caption_zh":"该零件是刚性U形叉架，两条平行长臂从厚矩形后连接块向前伸出。每条叉臂上沿长度方向排列两个横向圆通孔，共四孔；两臂之间保留宽大矩形开口，两侧结构互为镜像。","feature_tree_hint":["rear block extrusion","two fork-arm extrusions","central rectangular cut","four-hole linear patterns"],"confidence":"high"} | |
| {"sample_id":"CBX100_0017","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"tiered square pyramidal pedestal","visual_features":{"openings":[],"recesses":[],"protrusions":["stacked square stepped base","truncated square pyramid","central rounded dome","small pointed finial"],"repeated_structures":["concentric square tiers"],"symmetry":"fourfold rotational symmetry about the vertical axis","surface_character":"planar stepped and pyramidal faces combined with rotational dome and pointed surfaces"},"visual_caption_en":"A square pedestal built from several concentric stepped tiers and a truncated pyramidal upper stage. At the center sits a rounded dome or toroidal shoulder topped by a small pointed finial. The entire composition is vertically centered and fourfold symmetric, with no visible openings.","visual_caption_zh":"该零件是多层同心方形台阶构成的基座，上部为截头方锥台。中央安置圆顶或环形肩部，其上再叠加小型尖顶；整体竖直居中并具有四重旋转对称，未见开口。","feature_tree_hint":["stacked square extrusions","truncated square-pyramid loft","central revolve for dome and finial"],"confidence":"high"} | |
| {"sample_id":"CBX100_0018","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"S-curved double-loop sleeve","visual_features":{"openings":[{"type":"large vertical cylindrical opening","count":2,"location":"one inside each rounded loop lobe"}],"recesses":["S-shaped waist between the two lobes","side slit opening into one loop"],"protrusions":["two rounded cylindrical lobes joined by a curved web"],"repeated_structures":["paired loop cavities"],"symmetry":"approximate 180-degree rotational plan symmetry, interrupted by the side slit","surface_character":"vertical extrusion of a thick S-shaped two-loop profile"},"visual_caption_en":"A tall sleeve formed from two rounded loop lobes connected by a narrow S-curved waist. Each lobe contains a large vertical cylindrical opening, producing a figure-eight-like top profile, while a side slit breaks into one loop. The walls are nearly vertical and uniform in height.","visual_caption_zh":"该零件由两个圆弧环形叶片通过狭窄S形腰部连接成高套筒。每个叶片内都有一个大型竖直圆柱孔，顶视近似“8”字，其中一个环上还有侧向切缝；立壁高度基本一致。","feature_tree_hint":["S-shaped outer profile extrusion","two vertical cylindrical cuts","one radial side-slot cut"],"confidence":"high"} | |
| {"sample_id":"CBX100_0019","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"faceted quadruped animal figure","visual_features":{"openings":[],"recesses":["natural separations beneath the torso and between the legs"],"protrusions":["four slender legs","elongated muzzle","two very large upright ears","large tapered tail"],"repeated_structures":["four articulated legs","paired ears"],"symmetry":"approximate bilateral anatomical symmetry with an asymmetric tail pose","surface_character":"continuous low-poly organic surface with many triangular facets"},"visual_caption_en":"A low-poly quadruped animal figure with a compact torso, four slender articulated legs, an elongated pointed muzzle, two very large upright ears, and a large tapered tail. The body is one continuous faceted organic solid; no manufactured holes, slots, or regular prismatic features are visible.","visual_caption_zh":"该样本是低多边形四足动物造型，具有紧凑躯干、四条细长关节腿、尖长口鼻、一对巨大竖耳和宽大锥形尾部。整体是连续的三角分面有机实体，未见规则机械孔、槽或棱柱特征。","feature_tree_hint":["organic sculpted or lofted body","mirrored limb construction","separate lofts for ears muzzle and tail","final smooth union"],"confidence":"high"} | |
| {"sample_id":"CBX100_0020","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"broad curved hook plate","visual_features":{"openings":[{"type":"large rectangular-sided U opening","count":1,"location":"cut into the inner side"}],"recesses":["deep central U-shaped cutout"],"protrusions":["broad rounded paddle end","narrow arm","upright rounded stop tab"],"repeated_structures":[],"symmetry":"asymmetric hook layout","surface_character":"thin plate with a broad semicircular outer sweep and one vertical tab"},"visual_caption_en":"A broad, thin hook-like plate with a large rounded outer end and a deep rectangular-sided U-shaped cutout opening from one side. The remaining material narrows into an arm that terminates in a raised rounded stop tab. The plan outline is strongly curved and asymmetric, with nearly uniform plate thickness.","visual_caption_zh":"该零件是宽大薄钩形板，外端为大圆头，从一侧切入深的直边U形开口。剩余材料收窄为长臂，末端竖起圆头挡片；平面轮廓曲率明显且不对称，板厚近似均匀。","feature_tree_hint":["broad hook outline extrusion","large U-shaped cut","upright end-tab extrusion","rounded outer-edge construction"],"confidence":"high"} | |
| {"sample_id":"CBX100_0021","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"chamfered polygonal bearing housing","visual_features":{"openings":[{"type":"large axial circular through-bore","count":1,"location":"center"}],"recesses":["concentric annular face recess","four radial face pockets around the bore"],"protrusions":["thick faceted outer housing","raised annular ring"],"repeated_structures":["radially repeated face pockets"],"symmetry":"approximate fourfold rotational symmetry about the bore axis","surface_character":"faceted prismatic exterior with concentric cylindrical bore surfaces"},"visual_caption_en":"A thick chamfered polygonal housing centered on a large axial through-bore. One face carries a raised concentric annular ring and several radially repeated pockets or lugs around the bore, while the opposite face is simpler. Broad bevels break the outer block corners and preserve approximate fourfold symmetry.","visual_caption_zh":"该零件是厚实的倒角多边形座体，中央有大型轴向圆通孔。一侧端面设同心凸环，圆孔周围分布多个径向凹位或凸耳，另一侧较简洁；外形四角由宽倒斜面削平。","feature_tree_hint":["chamfered polygonal block","central bore cut","annular face recess and ring","radial pocket pattern"],"confidence":"medium"} | |
| {"sample_id":"CBX100_0022","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"serrated rectangular tread plate","visual_features":{"openings":[],"recesses":["long narrow center groove","stepped notches along both long edges"],"protrusions":["central longitudinal ridge","regular rectangular edge teeth"],"repeated_structures":["paired rows of evenly spaced side teeth"],"symmetry":"bilateral about the long center plane and approximately end symmetric","surface_character":"planar prismatic plate with repeated stepped edge geometry"},"visual_caption_en":"A low rectangular plate with a long narrow center groove or split ridge. Both long edges carry evenly spaced rectangular teeth, producing a symmetric stair-step outline. The ends are beveled or rounded slightly, and the repeated side serrations dominate the geometry.","visual_caption_zh":"该零件是低矮矩形板，中心有细长窄槽或分开的长向脊。两条长边上均匀排列矩形齿，形成对称的阶梯轮廓；两端带轻微斜面或圆角。","feature_tree_hint":["rectangular plate extrusion","central groove cut","linear pattern of side notches","end bevels"],"confidence":"high"} | |
| {"sample_id":"CBX100_0023","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"four-way nested fin array","visual_features":{"openings":[],"recesses":["regular channels between every adjacent fin"],"protrusions":["many upright V-shaped fins increasing toward the center cross"],"repeated_structures":["four mirrored arrays of parallel stepped fins"],"symmetry":"fourfold rotational and diagonal mirror symmetry","surface_character":"thin planar fins on a square base"},"visual_caption_en":"A square base supports four mirrored arrays of closely spaced upright fins. Each fin bends into a V toward the central crossing, and fin height increases progressively toward the two intersecting center ridges. Regular channels separate the fins, creating a strongly fourfold-symmetric nested pattern.","visual_caption_zh":"该零件在方形底板上布置四组镜像平行立式翅片。每片翅片朝中央弯成V形，高度随接近两条交叉中心脊而逐渐增加；相邻翅片间保留规则通道，整体具强四重对称。","feature_tree_hint":["square base extrusion","one V-fin profile","linear fin pattern","fourfold mirror or polar replication"],"confidence":"high"} | |
| {"sample_id":"CBX100_0024","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"rounded rectangular panel block","visual_features":{"openings":[],"recesses":["shallow framed rectangular panel on the upper front face"],"protrusions":["thin perimeter bead around the recessed panel","lower horizontal rounded band"],"repeated_structures":[],"symmetry":"bilateral about the vertical center plane","surface_character":"broad planar faces with rounded lower corners and shallow framed relief"},"visual_caption_en":"A simple upright rectangular block with rounded lower corners. The upper front region contains a shallow rectangular inset framed by a thin raised border, while a horizontal rounded band transitions into the lower portion. The back remains largely plain and no holes are visible.","visual_caption_zh":"该零件是下角圆滑的直立矩形块。正面上部有带细凸边框的浅矩形凹区，中下部通过水平圆弧带过渡；背面基本平整，未见通孔。","feature_tree_hint":["rounded-rectangle block extrusion","shallow rectangular pocket","perimeter bead extrusion","lower edge fillets"],"confidence":"high"} | |
| {"sample_id":"CBX100_0025","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"low conical dome with diagonal bar","visual_features":{"openings":[],"recesses":["shallow diagonal trough across the top","localized wedge-shaped cut beside the bar"],"protrusions":["broad low conical or domed base","long raised diagonal blade or bar"],"repeated_structures":[],"symmetry":"base is rotationally symmetric but the diagonal top feature breaks it","surface_character":"revolved conical-dome body combined with planar wedge and bar surfaces"},"visual_caption_en":"A broad low circular dome or truncated cone carries a long raised rectangular blade running diagonally across its top. A shallow trough and wedge-shaped relief flank the blade, breaking the otherwise rotationally symmetric base. The underside is flat and no through-hole is visible.","visual_caption_zh":"该零件的主体是宽大低矮的圆顶或截圆锥，顶面斜向跨越一条抬高的长矩形刃条。刃条两侧有浅槽和局部楔形退让，打破圆形基体的旋转对称；底面平直，未见通孔。","feature_tree_hint":["revolved low dome","diagonal bar extrusion","top trough cut","wedge relief cut"],"confidence":"medium"} | |
| {"sample_id":"CBX100_0026","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"slotted ribbed rack","visual_features":{"openings":[{"type":"rectangular through-slots","count":5,"location":"between six parallel longitudinal rails"}],"recesses":["transverse stepped pockets crossing the rail array"],"protrusions":["six tall parallel rails","two higher outer side walls","small repeated cross blocks"],"repeated_structures":["six longitudinal rails","regular transverse notch pattern"],"symmetry":"bilateral about the center plane","surface_character":"entirely prismatic planar ribs, walls, and slots"},"visual_caption_en":"A rectangular rack made from six parallel longitudinal rails separated by five open slots. The two outer rails rise into higher side walls, while a repeated row of transverse stepped pockets and small blocks crosses the inner rails. The construction is bilaterally symmetric and strongly repetitive.","visual_caption_zh":"该零件是矩形栅格架，由六条平行纵向导轨组成，相邻导轨间形成五条开口长槽。两侧外导轨抬高成侧壁，内部导轨上跨越一列重复的横向阶梯凹位和小块，整体关于中心面对称。","feature_tree_hint":["rectangular base or side walls","linear pattern of rail extrusions","five slot cuts","transverse stepped-notch pattern"],"confidence":"high"} | |
| {"sample_id":"CBX100_0027","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"thin ribbed rectangular plate with end tab","visual_features":{"openings":[],"recesses":[],"protrusions":["dense fine ribs across the broad face","one raised semicircular-ended tab at a short edge"],"repeated_structures":["many evenly spaced shallow surface ribs"],"symmetry":"rectangular plate is symmetric; single tab preserves centerline symmetry but breaks end symmetry","surface_character":"thin planar plate with fine corrugation and one rounded tab"},"visual_caption_en":"A thin rectangular plate whose broad face is covered by dense, evenly spaced shallow ribs. A single centered tab with a semicircular inner transition rises at one short edge. The remainder of the plate is flat, with no holes or large pockets.","visual_caption_zh":"该零件是薄矩形板，宽面布满等距浅细筋。一条短边中央抬起单个挡片，其根部采用半圆弧过渡；除此之外板面平坦，未见大孔或凹腔。","feature_tree_hint":["thin rectangular extrusion","linear pattern of shallow ribs","centered end-tab extrusion","semicircular tab-root cut or fillet"],"confidence":"high"} | |
| {"sample_id":"CBX100_0028","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"gusseted right-angle mounting bracket","visual_features":{"openings":[{"type":"vertical circular through-hole","count":4,"location":"base plate corners"},{"type":"horizontal circular through-hole","count":1,"location":"near top of upright plate"}],"recesses":["small top edge notch above the upright hole"],"protrusions":["rectangular base plate","tall upright plate","two triangular side gussets"],"repeated_structures":["four base mounting holes","paired gussets"],"symmetry":"bilateral about the upright center plane","surface_character":"planar prismatic plates and gussets with cylindrical holes"},"visual_caption_en":"A right-angle mounting bracket with a rectangular base, a tall central upright plate, and two triangular gussets bracing the sides. Four vertical through-holes occupy the base corners, while one horizontal through-hole pierces the upright near its top. A small centered notch interrupts the upper edge.","visual_caption_zh":"该零件是直角安装支架，由矩形底板、中央高立板和两侧三角加强筋组成。底板四角各有一个竖向通孔，立板靠近顶部处有一个横向通孔，上边中央还有小缺口。","feature_tree_hint":["base extrusion","upright plate extrusion","paired triangular gussets","four-hole base pattern","upright hole cut","top notch cut"],"confidence":"high"} | |
| {"sample_id":"CBX100_0029","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"six-spoke wheel","visual_features":{"openings":[{"type":"central circular bore","count":1,"location":"hub"},{"type":"large sector openings","count":6,"location":"between spokes"},{"type":"small peripheral circular hole","count":2,"location":"opposed positions near the rim"}],"recesses":["circumferential groove around the outer rim"],"protrusions":["outer polygonal rim","central hub","six tapered spokes"],"repeated_structures":["six-spoke radial pattern","six sector openings"],"symmetry":"sixfold rotational symmetry, with two auxiliary holes reducing exact symmetry","surface_character":"radial prismatic wheel with faceted rim and tapered spokes"},"visual_caption_en":"A wheel with a thick polygonal outer rim, a central bored hub, and six broad tapered spokes. Six large open sectors separate the spokes, and a shallow circumferential groove runs around the rim. Two smaller circular holes appear at opposed peripheral positions.","visual_caption_zh":"该零件是由厚多边形外轮缘、中心轮毂和六条宽锥形辐条构成的轮体。轮毂中央有圆孔，六条辐条之间形成六个大扇形开口，外轮缘有环向浅槽，并可见两个对置小圆孔。","feature_tree_hint":["outer rim revolve","central hub and bore","one tapered spoke","sixfold polar pattern","rim groove","two auxiliary hole cuts"],"confidence":"medium"} | |
| {"sample_id":"CBX100_0030","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"round divided tray with mounting lugs","visual_features":{"openings":[{"type":"open top cavity","count":2,"location":"two compartments divided by the central rib"}],"recesses":["shallow circular tray interior"],"protrusions":["raised circular perimeter wall","one full-width central divider rib","four exterior rectangular lugs"],"repeated_structures":["four evenly spaced outer lugs"],"symmetry":"twofold about the divider and transverse center plane","surface_character":"cylindrical tray wall with planar floor, divider, and lugs"},"visual_caption_en":"A shallow round tray with a raised perimeter wall and a straight divider rib spanning the full diameter, creating two open semicircular compartments. Four rectangular mounting lugs project from the outside at quarter positions. The underside is closed and the top remains open.","visual_caption_zh":"该零件是浅圆形托盘，周边有抬高圆环壁，一条直分隔筋沿整个直径跨越，将内部分成两个开口半圆腔。外壁四分位均匀伸出四个矩形安装耳，底部封闭，顶部开口。","feature_tree_hint":["circular base extrusion","annular wall extrusion","diametral divider extrusion","four-lug polar pattern"],"confidence":"high"} | |
| {"sample_id":"CBX100_0031","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"cross-tube bracket with end blocks and fork","visual_features":{"openings":[{"type":"vertical circular through-hole","count":2,"location":"one in each rectangular end block"},{"type":"axial circular bore","count":1,"location":"through the connecting round tube"}],"recesses":["two slots separating three fork fingers at one end"],"protrusions":["two rectangular end blocks","hollow round connecting tube","three fork fingers"],"repeated_structures":["paired holed end blocks","fork fingers"],"symmetry":"asymmetric along the tube axis","surface_character":"mixed rectangular prisms and a cylindrical tube"},"visual_caption_en":"Two rectangular end blocks are joined by a hollow cylindrical cross-tube. Each block has a vertical circular through-hole, while one end transitions into a three-finger fork separated by two deep slots. The opposite end remains a simple solid block, making the assembly asymmetric.","visual_caption_zh":"该零件由两个矩形端块和中间中空圆管连接而成。两个端块各有一个竖向圆通孔，其中一端由两条深槽分成三个叉指，另一端保持简单实心块形。","feature_tree_hint":["two end-block extrusions","hollow tube union","two block hole cuts","two fork-slot cuts"],"confidence":"medium"} | |
| {"sample_id":"CBX100_0032","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"ring clamp with rectangular boss","visual_features":{"openings":[{"type":"large vertical circular opening","count":1,"location":"inside the ring body"}],"recesses":["narrow split or relief at the boss junction"],"protrusions":["thick circular ring","large rectangular side boss","triangular transition gussets"],"repeated_structures":[],"symmetry":"ring is axial; side boss breaks rotational symmetry","surface_character":"cylindrical ring surfaces blended into planar prismatic boss faces"},"visual_caption_en":"A thick circular ring or clamp body surrounds one large vertical cylindrical opening. A bulky rectangular boss projects from one side and is joined to the ring by sloped gusset-like transitions; a narrow relief appears near the junction. The main ring is smooth and rounded, while the boss is strongly prismatic.","visual_caption_zh":"该零件的主体是围绕大型竖直圆孔的厚圆环或夹圈。一侧伸出大矩形凸座，通过斜向加强过渡与圆环相连，接合处附近可见窄退让缝。","feature_tree_hint":["annular ring extrusion","large bore","side boss extrusion","gusset unions","junction relief cut"],"confidence":"medium"} | |
| {"sample_id":"CBX100_0033","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"long J-hook pry bar with forked tip","visual_features":{"openings":[],"recesses":["narrow slot splitting one end into two prongs"],"protrusions":["long tapered rectangular shank","broad curved J-hook","two small fork prongs"],"repeated_structures":["paired terminal prongs"],"symmetry":"constant thickness but asymmetric end profiles","surface_character":"slender prismatic bar with one broad planar curve"},"visual_caption_en":"A long tapered bar terminates in a broad J-shaped curved hook at one end and a short two-prong fork at the other. A narrow center slot separates the fork tips. The shank remains mostly straight and flat, with the principal complexity concentrated at the two unlike ends.","visual_caption_zh":"该零件是细长锥形杆，一端弯成宽大J形钩，另一端由中心窄槽分成两个短叉齿。杆身主体平直，复杂结构集中在形状不同的两端。","feature_tree_hint":["hooked side-profile extrusion","tapered shank","terminal slot cut"],"confidence":"high"} | |
| {"sample_id":"CBX100_0034","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"toothed cylindrical gear rotor","visual_features":{"openings":[{"type":"small axial bore","count":1,"location":"center"}],"recesses":["stepped internal face cavity with block-like pockets"],"protrusions":["thick cylindrical hub","dense radial tooth ring","internal stepped lugs"],"repeated_structures":["many evenly spaced radial teeth"],"symmetry":"high-order rotational symmetry at the outer teeth; inner pockets reduce exact symmetry","surface_character":"cylindrical and planar gear surfaces with repeated prismatic teeth"},"visual_caption_en":"A thick cylindrical rotor carries a dense ring of evenly spaced radial teeth around its circumference and a small axial center bore. One face is mostly conical or dished, while the opposite face contains a stepped cavity with several block-like internal lugs. The repeated tooth ring dominates the silhouette.","visual_caption_zh":"该零件是厚圆柱转子，外圆周均匀布置密集径向齿，中央有小轴向孔。一侧端面近似锥形或盘形，另一侧含阶梯式凹腔和多个块状内凸耳，外齿环是主要轮廓特征。","feature_tree_hint":["revolved hub","one radial tooth","high-count polar pattern","central bore","stepped face pocket","internal lug pattern"],"confidence":"medium"} | |
| {"sample_id":"CBX100_0035","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"rectangular block with two countersunk holes and top grooves","visual_features":{"openings":[{"type":"circular through-hole","count":2,"location":"near opposite top corners"}],"recesses":["two long shallow V-shaped grooves connecting the end regions"],"protrusions":[],"repeated_structures":["paired end holes","paired longitudinal grooves"],"symmetry":"approximately 180-degree rotational symmetry in plan","surface_character":"planar rectangular prism with cylindrical holes and shallow ruled grooves"},"visual_caption_en":"A plain rectangular block is pierced by two circular through-holes near opposite ends. The top face carries two long shallow V-shaped grooves or score lines that converge toward the hole regions, creating an elongated symmetric pattern. The side and bottom faces remain flat.","visual_caption_zh":"该零件是简洁矩形块，靠近两端各有一个圆形通孔。顶面有两条细长浅V形槽或刻线，向两端孔区收敛，侧面和底面保持平整。","feature_tree_hint":["rectangular block extrusion","two through-hole cuts","two shallow V-groove cuts"],"confidence":"high"} | |
| {"sample_id":"CBX100_0036","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"C-shaped clamp bracket with end blocks","visual_features":{"openings":[{"type":"large semicircular central opening","count":1,"location":"inside C-shaped body"},{"type":"small circular through-hole","count":4,"location":"distributed across end blocks and arms"}],"recesses":["open throat breaking the circular body"],"protrusions":["curved clamp band","rectangular end blocks","straight reinforcing arms"],"repeated_structures":["paired end blocks and arm holes"],"symmetry":"approximate bilateral symmetry across the clamp center plane","surface_character":"curved cylindrical band joined to planar prismatic blocks"},"visual_caption_en":"A thick C-shaped clamp body wraps around a large semicircular opening and remains open at one side. Rectangular end blocks and straight arms extend from the curved band, with four smaller circular through-holes distributed across the blocks and arms. The layout is approximately mirrored across the central plane.","visual_caption_zh":"该零件是厚C形夹箍，弯曲环带包围大半圆开口，一侧保留开放喉口。圆弧带两端连接矩形端块和直加强臂，其上分布四个较小圆通孔。","feature_tree_hint":["C-ring extrusion","throat cut","end-block and arm unions","four hole cuts"],"confidence":"medium"} | |
| {"sample_id":"CBX100_0037","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"rounded rectangular ring with mounting eye","visual_features":{"openings":[{"type":"large rounded rectangular opening","count":1,"location":"center"},{"type":"small circular through-hole","count":1,"location":"external mounting eye"}],"recesses":[],"protrusions":["uniform rounded rectangular frame","single teardrop-shaped mounting ear"],"repeated_structures":["four rounded frame corners"],"symmetry":"frame is biaxially symmetric; one ear breaks overall symmetry","surface_character":"constant-height extruded rounded frame with one circular eye"},"visual_caption_en":"A uniform rounded rectangular ring surrounds a large open center. One corner or side carries a small teardrop-shaped mounting ear with a circular through-hole. Apart from this ear, the frame has constant height, nearly uniform wall thickness, and four rounded corners.","visual_caption_zh":"该零件是均匀圆角矩形环框，中央为大型开口。一个角或侧边向外伸出水滴形安装耳，耳上有小圆通孔；除此外框高和壁厚近似均匀。","feature_tree_hint":["rounded rectangular ring extrusion","central opening","mounting-ear union","ear hole cut"],"confidence":"high"} | |
| {"sample_id":"CBX100_0038","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"hanging multi-fin bracket","visual_features":{"openings":[{"type":"open slots","count":4,"location":"between five hanging vertical fins"}],"recesses":["long top guide groove"],"protrusions":["five parallel hanging plates of staggered length","three round top bosses","top spine plate"],"repeated_structures":["five fins","three aligned bosses"],"symmetry":"repetitive along the length but staggered fin depths break mirror symmetry","surface_character":"thin planar fins suspended from a prismatic top spine"},"visual_caption_en":"A long top spine supports five parallel vertical hanging fins separated by four open slots. The fins step to different lengths, while three circular bosses are aligned along the top face beside a shallow guide groove. The geometry is strongly repetitive but not fully mirror symmetric because of the staggered fin depths.","visual_caption_zh":"该零件由细长顶部主脊悬挂五块平行竖直板，板间形成四条开口槽，各板长度呈阶梯变化。顶面沿长度排列三个圆形凸台，旁边有浅导向槽。","feature_tree_hint":["top spine extrusion","five-fin linear pattern with varied lengths","three-boss pattern","top groove cut"],"confidence":"high"} | |
| {"sample_id":"CBX100_0039","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"rectangular open mounting frame","visual_features":{"openings":[{"type":"large rectangular opening","count":1,"location":"center"},{"type":"vertical circular through-hole","count":6,"location":"three along each short end rail"},{"type":"transverse circular through-hole","count":2,"location":"through the outer end faces"}],"recesses":["long shallow groove on one end rail"],"protrusions":["two long side rails","two wide end rails"],"repeated_structures":["paired three-hole end patterns"],"symmetry":"approximately end-to-end and bilateral symmetry","surface_character":"planar prismatic frame rails with cylindrical holes"},"visual_caption_en":"A rigid rectangular frame surrounds one large open center. Each wide short end rail carries three vertical circular holes, giving two matching three-hole patterns, and the outer end faces also show transverse holes. A shallow longitudinal groove runs along one end rail.","visual_caption_zh":"该零件是刚性矩形开口框，中央保留大矩形通空。两条宽短边框各排列三个竖向圆孔，外侧端面还可见横向孔，其中一条端框上有浅纵向槽。","feature_tree_hint":["rectangular frame extrusion","central cutout","two three-hole patterns","two transverse end holes","shallow end-rail groove"],"confidence":"medium"} | |
| {"sample_id":"CBX100_0040","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"rounded panel with twin hinge barrels","visual_features":{"openings":[{"type":"axial hinge bore","count":2,"location":"through two edge barrels"}],"recesses":[],"protrusions":["broad gently domed panel","two short cylindrical hinge knuckles"],"repeated_structures":["paired hinge barrels"],"symmetry":"bilateral about the panel center plane","surface_character":"thin rounded rectangular plate with a shallow compound dome and cylindrical knuckles"},"visual_caption_en":"A thin rounded rectangular panel rises into a broad shallow dome, with one end edge remaining straighter and the opposite corners strongly rounded. Two short cylindrical hinge barrels sit along the straight edge, each containing an axial bore. The barrel pair is centered and mirrored.","visual_caption_zh":"该零件是薄圆角矩形面板，中部向上缓慢拱起成宽浅曲面。较直的一条边上设置两个短圆柱铰链套，每个套内有轴向孔，两套关于中心面镜像。","feature_tree_hint":["rounded panel extrusion or loft","shallow dome surface","two hinge-barrel unions","two axial bore cuts"],"confidence":"high"} | |
| {"sample_id":"CBX100_0041","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"four-aperture handle frame","visual_features":{"openings":[{"type":"large circular finger opening","count":4,"location":"four adjacent lobes"},{"type":"long narrow slot","count":1,"location":"inside the parallel handle bar"}],"recesses":[],"protrusions":["four joined circular lobes","long rounded parallel bar","end return joining the two sides"],"repeated_structures":["four equal circular apertures"],"symmetry":"repetitive along the four-hole row","surface_character":"constant-thickness extruded frame with rounded contours"},"visual_caption_en":"A constant-thickness handle-like frame combines four adjacent circular apertures with a long rounded bar running parallel to the hole row. The bar returns around one end and contains a narrow internal slot, while the four repeated lobes form a scalloped outer edge.","visual_caption_zh":"该零件是等厚手柄式框体，四个相邻大圆开口构成波浪形外缘，其旁平行布置一条长圆角杆。长杆在一端回连并包含细长内槽。","feature_tree_hint":["scalloped four-lobe outline extrusion","four circular cuts","parallel rounded bar","long slot cut","end return union"],"confidence":"high"} | |
| {"sample_id":"CBX100_0042","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"thin rectangular cover plate with underside channel","visual_features":{"openings":[],"recesses":["long central underside channel","small shallow diagonal slit on the top face","small edge notch at one short end"],"protrusions":["narrow underside rails"],"repeated_structures":["paired underside rails"],"symmetry":"mostly bilateral, interrupted by the small top slit and end notch","surface_character":"thin planar rectangular plate with shallow linear relief"},"visual_caption_en":"A thin rectangular cover plate is nearly plain on top except for a small shallow diagonal slit. The underside contains a long central channel bordered by narrow rails, and one short edge has a small centered notch. The overall form is flat and prismatic.","visual_caption_zh":"该零件是薄矩形盖板，顶面基本平坦，仅有一条小型浅斜缝。底面有细长中心通道，两侧由窄导轨界定，一条短边上还有居中小缺口。","feature_tree_hint":["thin rectangular extrusion","underside channel cut","paired rail relief","small top slit","end notch"],"confidence":"medium"} | |
| {"sample_id":"CBX100_0043","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"mirrored double-dragon ornamental frame","visual_features":{"openings":[{"type":"large irregular central opening","count":1,"location":"between two mirrored figures"},{"type":"small organic body opening","count":2,"location":"one inside each figure"}],"recesses":[],"protrusions":["two mirrored serpentine animal silhouettes with heads, limbs, and curled tails"],"repeated_structures":["paired mirrored dragon-like figures"],"symmetry":"strong twofold mirror symmetry","surface_character":"thin flat ornamental extrusion with highly intricate organic outline"},"visual_caption_en":"A thin ornamental frame is formed by two mirrored serpentine dragon-like figures facing away from the center. Their bodies and curled tails enclose one large irregular central opening, and each figure contains a smaller organic cutout. Fine head, limb, and tail projections create a complex but nearly perfectly mirrored silhouette.","visual_caption_zh":"该零件是由两个镜像蛇形龙状图案构成的薄装饰框。两个躯干和卷曲尾部包围一个大型不规则中心开口，每个图形内还有小型有机开孔，头部、肢体和尾端细节繁复。","feature_tree_hint":["one detailed organic silhouette sketch","mirror copy","large central cut","two internal organic cuts","thin extrusion"],"confidence":"high"} | |
| {"sample_id":"CBX100_0044","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"curved shell cover with side guide rails","visual_features":{"openings":[{"type":"small square through-hole","count":2,"location":"flat upper panel"}],"recesses":["long guide channel between doubled side flanges"],"protrusions":["large quarter-cylindrical curved shell","flat rear platform","stacked side rail flanges"],"repeated_structures":["two square holes","paired side rails"],"symmetry":"bilateral about the longitudinal center plane","surface_character":"thin curved shell blended into planar platform and prismatic rails"},"visual_caption_en":"A broad quarter-cylindrical shell curves downward from a flat rear platform. The platform contains two small square through-holes, and both side edges carry doubled guide flanges separated by a long channel. The cover is thin-walled and bilaterally symmetric.","visual_caption_zh":"该零件由平直后平台过渡到宽大四分之一圆柱弧形壳。平台上有两个小方形通孔，两侧边缘设有双层导轨翻边，其间形成长导槽，整体为薄壁对称结构。","feature_tree_hint":["quarter-cylinder shell sweep","flat platform extrusion","two square cuts","paired side flange extrusions","guide-channel cuts"],"confidence":"high"} | |
| {"sample_id":"CBX100_0045","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"long link with eye and forked crosshead","visual_features":{"openings":[{"type":"circular through-eye","count":1,"location":"rounded end"},{"type":"transverse circular hole","count":2,"location":"forked crosshead prongs"}],"recesses":["long shallow channel along the link","central slot in the crosshead"],"protrusions":["long rectangular shank","rounded eye end","wide forked crosshead"],"repeated_structures":["paired crosshead prongs and holes"],"symmetry":"bilateral about the shank center plane","surface_character":"prismatic link with cylindrical holes and filleted end"},"visual_caption_en":"A long straight link has a rounded eye with one circular through-hole at one end and a wide forked crosshead at the other. The crosshead is split by a central slot and carries a transverse hole through each prong. A shallow lengthwise channel lightens the top of the shank.","visual_caption_zh":"该零件是细长直连杆，一端为带圆通孔的圆头环，另一端展宽成叉形横头。横头中央有缝将其分成两个叉齿，每个叉齿上有横向孔，杆顶有长向浅槽。","feature_tree_hint":["long link extrusion","rounded eye and hole","crosshead union","fork slot cut","two crosshead holes","long top channel"],"confidence":"high"} | |
| {"sample_id":"CBX100_0046","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"five-arm star base with central blade cluster","visual_features":{"openings":[],"recesses":[],"protrusions":["five tapered radial arms","five round terminal feet","central vertical hub","several upright triangular blades around the hub"],"repeated_structures":["five-arm radial pattern","five terminal feet"],"symmetry":"fivefold rotational symmetry in the base, reduced by the upper blade arrangement","surface_character":"tapered prismatic arms and thin triangular fins around a central hub"},"visual_caption_en":"A star-shaped base spreads five long tapered arms from a central hub, each ending in a round foot pad. Above the hub rises a cluster of thin triangular and vertical blades arranged around a short central post. The lower base is fivefold symmetric while the upper fin cluster is more irregular.","visual_caption_zh":"该零件的底部从中心轮毂径向伸出五条长锥形臂，每条臂末端有圆形脚垫。轮毂上方围绕短中柱竖起多片三角及竖直翅片，下部具五重对称，上部翅片组较不规则。","feature_tree_hint":["one tapered arm and foot","fivefold polar pattern","central hub extrusion","upper blade plate extrusions"],"confidence":"high"} | |
| {"sample_id":"CBX100_0047","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"rectangular tray with four circular ring compartments","visual_features":{"openings":[{"type":"large circular well","count":4,"location":"two-by-two internal arrangement"},{"type":"small corner circular opening","count":1,"location":"one exterior corner boss"}],"recesses":["shallow rectangular tray interior","four circular wells"],"protrusions":["outer rectangular wall","interconnecting curved ring walls and radial webs","corner tubular boss"],"repeated_structures":["four circular compartments in a 2x2 pattern"],"symmetry":"approximately twofold or fourfold internally, broken by the corner boss","surface_character":"thin prismatic tray walls with circular internal partitions"},"visual_caption_en":"A shallow rectangular tray encloses four large circular ring-shaped compartments arranged in a two-by-two grid. Curved walls and radial webs connect the rings to one another and to the outer frame. One corner projects into a small tubular boss with a circular opening.","visual_caption_zh":"该零件是浅矩形托盘，内部以2×2方式排列四个大圆环隔腔。圆弧壁和径向连接筋将各圆环与外框相连，一个外角伸出带圆孔的小管状凸座。","feature_tree_hint":["rectangular tray and wall","four-ring 2x2 pattern","radial connecting webs","corner boss and hole"],"confidence":"medium"} | |
| {"sample_id":"CBX100_0048","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"split circular clamp ring with hinge knuckles","visual_features":{"openings":[{"type":"large central circular opening","count":1,"location":"inside split ring"},{"type":"open radial gap","count":1,"location":"opposite the hinge"}],"recesses":["split gap between free ring ends"],"protrusions":["thick C-shaped ring","three interleaved hinge knuckles","small outer stop lug"],"repeated_structures":["hinge knuckle stack"],"symmetry":"ring is axial except for hinge and split details","surface_character":"constant rectangular-section curved band with small cylindrical knuckles"},"visual_caption_en":"A thick circular clamp ring is split by a wide radial gap, leaving two squared free ends. On the opposite side, three interleaved hinge knuckles project from the outer circumference, with a small stop lug nearby. The main band has a nearly constant rectangular cross-section.","visual_caption_zh":"该零件是厚圆形夹紧环，一侧由宽径向缺口断开，形成两个方头自由端。对侧外圆周上伸出三个交错铰链套，旁边还有小挡块，主环带截面近似恒定矩形。","feature_tree_hint":["split ring extrusion or sweep","radial gap cut","three hinge-knuckle unions","small stop-lug union"],"confidence":"high"} | |
| {"sample_id":"CBX100_0049","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"long perforated U-channel rail","visual_features":{"openings":[{"type":"vertical circular through-hole","count":10,"location":"evenly spaced along the top web"}],"recesses":["continuous longitudinal inner channel","semicircular side reliefs aligned with the holes"],"protrusions":["two long rounded side rails"],"repeated_structures":["ten-hole linear pattern","matching side relief pattern"],"symmetry":"bilateral and repetitive along the length","surface_character":"rounded rectangular U-channel with cylindrical holes"},"visual_caption_en":"A long narrow U-channel rail has two rounded side walls and a continuous inner trough. Ten circular through-holes are evenly spaced along the top web, with matching semicircular reliefs visible on the side walls. Both ends are rounded and the feature pattern repeats uniformly.","visual_caption_zh":"该零件是细长U形槽导轨，两侧为圆角长壁，内部有连续纵向槽。顶部腹板沿长度均匀排列十个圆通孔，侧壁上可见与之对齐的半圆退让，两端圆滑收口。","feature_tree_hint":["U-channel extrusion","ten-hole linear pattern","matching side relief cuts","end fillets"],"confidence":"high"} | |
| {"sample_id":"CBX100_0050","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"faceted swept-wing aircraft figure","visual_features":{"openings":[],"recesses":["angular panel breaks around the fuselage and wing roots"],"protrusions":["long swept wings","central faceted fuselage","large vertical tail fin","smaller stabilizing fins","several thin nose prongs"],"repeated_structures":["paired wings and stabilizers"],"symmetry":"strong bilateral aircraft symmetry","surface_character":"low-poly aerodynamic body with thin tapered lifting surfaces"},"visual_caption_en":"A low-poly aircraft figure has a central angular fuselage, very long swept wings, a tall vertical tail fin, smaller stabilizing fins, and several thin prongs projecting from the nose. The lifting surfaces taper sharply and mirror across the fuselage center plane; no manufactured openings are visible.","visual_caption_zh":"该样本是低多边形飞行器造型，由中央棱角机身、很长的后掠机翼、高竖直尾翼、较小稳定面和机头多根细长突针组成。翼面向外快速收尖，关于机身中心面强对称。","feature_tree_hint":["faceted fuselage loft","mirrored swept-wing surfaces","tail and stabilizer plate extrusions","nose-prong pattern"],"confidence":"high"} | |
| {"sample_id":"CBX100_0051","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"polygonal annular mounting flange","visual_features":{"openings":[{"type":"large central circular opening","count":1,"location":"center"},{"type":"small circular mounting hole","count":6,"location":"distributed near the outer vertices"}],"recesses":["annular step surrounding the center opening"],"protrusions":["faceted outer flange","radial web segments between inner ring and outer boundary"],"repeated_structures":["six-hole circumferential pattern","six radial web sectors"],"symmetry":"approximately sixfold rotational symmetry","surface_character":"thin planar flange with faceted perimeter and concentric rings"},"visual_caption_en":"A thin polygonal mounting flange surrounds one large circular center opening. Six small circular holes are distributed near the outer vertices, while radial web sectors connect a raised inner ring to the faceted perimeter. The layout is approximately sixfold symmetric.","visual_caption_zh":"该零件为薄型多边形安装法兰，中央有一个大圆孔，外缘各顶点附近均布六个小安装孔。凸起内环通过径向筋段连接到折线外轮廓，整体近似六重旋转对称。","feature_tree_hint":["polygonal plate extrusion","central circular cut","six-hole polar pattern","inner annular boss","radial web pattern"],"confidence":"high"} | |
| {"sample_id":"CBX100_0052","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"asymmetric rail bracket with circular guard","visual_features":{"openings":[{"type":"axial cylindrical bore","count":1,"location":"inside the raised round boss"}],"recesses":["long base channel","semicircular cavity inside the curved end guard","slots between paired upright plates"],"protrusions":["large semicircular guard wall","central hollow cylindrical boss","paired upright end plates","long rectangular base rails"],"repeated_structures":["paired upright guide plates"],"symmetry":"locally bilateral but globally asymmetric","surface_character":"compound prismatic bracket with one dominant curved wall"},"visual_caption_en":"An asymmetric rail bracket combines a long rectangular channel base with paired upright guide plates at its ends. One end carries a large semicircular guard around a raised hollow cylindrical boss, producing a conspicuous axial bore and an open curved cavity.","visual_caption_zh":"该样本是非对称导轨支架，细长矩形槽形底座两端设有成对竖直导向板。其中一端带大型半圆护壁，包围一个凸起的空心圆柱座，形成明显轴向孔和开放弧形腔。","feature_tree_hint":["channel base extrusion","paired plate extrusions","semicircular guard extrusion","cylindrical boss","axial bore cut"],"confidence":"high"} | |
| {"sample_id":"CBX100_0053","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"ornate square mechanism platform","visual_features":{"openings":[{"type":"central axial bore","count":1,"location":"inside the raised turret"}],"recesses":["stepped square perimeter","channels between toothed guide ribs"],"protrusions":["layered square base","hollow crenellated central turret","large curved toothed rail","straight toothed ridge","multiple diagonal and radial fins"],"repeated_structures":["teeth along curved and straight guide elements","stepped perimeter details"],"symmetry":"complex partial symmetry with an asymmetric feature layout","surface_character":"dense architectural assembly of prismatic, cylindrical, and toothed features"},"visual_caption_en":"A layered square platform supports a hollow crenellated turret near the center, a broad curved toothed rail, a straight toothed ridge, and several diagonal or radial fins. Repeated teeth and stepped border details make the part visually dense, while the feature arrangement remains asymmetric.","visual_caption_zh":"该零件以多层方形平台为底，中心附近设有带轴孔的城垛状圆塔，并组合大型弧形齿轨、直线齿脊及多条斜向或径向筋。重复齿和阶梯边框使结构密集，特征布局整体非对称。","feature_tree_hint":["layered square extrusions","hollow turret and crenellation pattern","curved toothed sweep","straight linear tooth pattern","radial fin extrusions"],"confidence":"medium"} | |
| {"sample_id":"CBX100_0054","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"three-bay arched support rail","visual_features":{"openings":[{"type":"semicircular arch opening","count":3,"location":"evenly spaced below the top rail"}],"recesses":[],"protrusions":["long horizontal top beam","four vertical support legs"],"repeated_structures":["three equal arch bays","four evenly spaced supports"],"symmetry":"bilateral with a regular linear repeat","surface_character":"constant-depth prismatic bridge profile"},"visual_caption_en":"A long horizontal beam is carried by four rectangular supports, creating three evenly spaced semicircular arch openings below it. The bridge-like profile has constant depth, flat faces, and a regular bilateral linear pattern.","visual_caption_zh":"该零件由一根细长水平顶梁和四个矩形支腿组成，梁下形成三个均匀排列的半圆拱孔。整体为等厚棱柱式桥梁轮廓，平面清晰并具有规则线性重复。","feature_tree_hint":["bridge-profile sketch","constant-depth extrusion","three semicircular profile cuts","edge fillets"],"confidence":"high"} | |
| {"sample_id":"CBX100_0055","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"tall flared revolved column","visual_features":{"openings":[],"recesses":["vertical split at the upper tip","shallow decorative relief on the underside"],"protrusions":["wide flared circular base","tapered central stem","ring collar","slender upper shaft","paired rounded tip prongs"],"repeated_structures":["paired upper prongs"],"symmetry":"predominantly rotational with a bilateral split at the tip","surface_character":"smooth revolved silhouette transitioning from broad base to narrow shaft"},"visual_caption_en":"A tall axisymmetric column rises from a wide flared circular base through a tapered stem and a narrow ring collar. The upper shaft is slender and terminates in two rounded prongs separated by a vertical split, breaking the otherwise revolved form.","visual_caption_zh":"该样本是高挑轴对称柱体，宽大的外扩圆底经渐缩杆身过渡到窄环形肩部，再延伸为细长上轴。顶部由纵向开缝分成两个圆头叉瓣，打破了其余旋转体轮廓。","feature_tree_hint":["revolved flared profile","collar revolve","upper shaft extrusion","tip split cut","end fillets"],"confidence":"high"} | |
| {"sample_id":"CBX100_0056","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"rounded triangular shell bracket","visual_features":{"openings":[],"recesses":["open rear channel","horizontal gaps around two internal pads","narrow vertical side slots"],"protrusions":["tall rounded triangular outer shell","central V-shaped front ridge","two large rectangular internal pads"],"repeated_structures":["two vertically stacked rear pads","paired side walls"],"symmetry":"strong bilateral symmetry about the vertical center plane","surface_character":"faceted folded shell with rounded vertical edges"},"visual_caption_en":"A tall rounded triangular shell forms a V-shaped central ridge on the front and an open channel on the rear. Two large rectangular pads are stacked inside the rear opening, separated by horizontal gaps, while narrow slots run beside the enclosing side walls.","visual_caption_zh":"该零件为高直圆角三角壳体，正面形成V形中央脊，背面为开放通道。背部开口内上下叠置两个大型矩形垫块，之间留有水平间隙，包围侧壁旁还形成狭窄槽口。","feature_tree_hint":["folded triangular shell extrusion","front ridge construction","two internal pad extrusions","rear and side channel cuts","vertical edge fillets"],"confidence":"medium"} | |
| {"sample_id":"CBX100_0057","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"six-arm snowflake ornament","visual_features":{"openings":[{"type":"central circular through-hole","count":1,"location":"center"},{"type":"branch-bounded open region","count":12,"location":"between adjacent arm branches"}],"recesses":[],"protrusions":["six long radial arms","multiple angled branch prongs on each arm","pointed outer tips"],"repeated_structures":["six identical branched arms","repeated branch pairs along each arm"],"symmetry":"sixfold rotational and multiple mirror symmetries","surface_character":"thin constant-depth planar ornament with sharp branching edges"},"visual_caption_en":"A thin snowflake ornament has six identical radial arms around a small circular center hole. Each arm divides into repeated angled branch prongs and ends in a pointed tip, leaving numerous open regions between neighboring branches. The design has clear sixfold rotational symmetry.","visual_caption_zh":"该样本为薄片雪花饰件，六条相同径向主臂围绕中央小圆通孔展开。每条主臂带有重复斜向分叉并以尖端结束，相邻枝杈之间形成大量开放区域，具有明确六重旋转对称。","feature_tree_hint":["single snowflake profile sketch","sixfold polar pattern","central hole cut","thin plate extrusion"],"confidence":"high"} | |
| {"sample_id":"CBX100_0058","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"rounded rectangular control housing","visual_features":{"openings":[],"recesses":["cross-shaped top channels separating four pads","single vertical slot on one end face","grid of small rectangular side recesses","small circular side recess"],"protrusions":["rounded rectangular housing","four rounded top pads arranged in a two-by-two grid"],"repeated_structures":["four top pads","rectangular recess grid"],"symmetry":"top layout is biaxial; side details make the full housing asymmetric","surface_character":"compact filleted enclosure with embossed and recessed interface details"},"visual_caption_en":"A compact rounded rectangular housing carries four raised rounded pads in a two-by-two top grid, separated by a cross-shaped channel. Its side faces include a small circular recess, a grid of shallow rectangular recesses, and a single vertical end slot, making the otherwise balanced body asymmetric.","visual_caption_zh":"该零件是紧凑圆角矩形壳体，顶部以2×2阵列布置四个凸起圆角垫块，中间由十字槽分隔。侧面还包含小圆形凹位、成组浅矩形凹格及端面单条竖槽，使整体细节呈非对称。","feature_tree_hint":["filleted box extrusion","four-pad rectangular pattern","cross-channel cut","side recess grid","circular and vertical-slot cuts"],"confidence":"high"} | |
| {"sample_id":"CBX100_0059","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"slotted rectangular carriage","visual_features":{"openings":[],"recesses":["two deep open-ended longitudinal rectangular channels"],"protrusions":["central rectangular spine","parallel outer arms","four rounded cylindrical corner posts"],"repeated_structures":["paired longitudinal channels","four corner posts"],"symmetry":"bilateral in both plan axes","surface_character":"low prismatic frame with rounded post details"},"visual_caption_en":"A low rectangular carriage is divided by two deep open-ended longitudinal channels, leaving a broad center spine and parallel outer arms. Four short rounded cylindrical posts rise at the corners, producing a balanced biaxial layout without visible through-holes.","visual_caption_zh":"该样本是低矮矩形滑座，两条从端部开放的深纵向矩形槽将主体分成宽中央脊和两侧平行臂。四个短圆柱形圆角立柱位于四角，平面布局呈双轴对称。","feature_tree_hint":["rectangular base extrusion","two longitudinal channel cuts","four-post rectangular pattern","edge fillets"],"confidence":"high"} | |
| {"sample_id":"CBX100_0060","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"smoothly bent rectangular bar","visual_features":{"openings":[],"recesses":[],"protrusions":["single elongated bent bar"],"repeated_structures":[],"symmetry":"approximately symmetric through its bending plane","surface_character":"smooth constant rounded-rectangular section along a gradual curved path"},"visual_caption_en":"A single elongated bar with a rounded rectangular cross-section follows one broad, gradual bend. The section remains nearly constant along the path, both end faces are flat, and there are no visible holes, slots, or added bosses.","visual_caption_zh":"该零件是一根采用圆角矩形截面的细长弯杆，沿长度形成一次宽缓弯曲。截面基本恒定，两端为平端面，表面未见孔、槽或附加凸台。","feature_tree_hint":["rounded-rectangle profile","single-path sweep","planar bend","flat end trims"],"confidence":"high"} | |
| {"sample_id":"CBX100_0061","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"split circular clamp ring with eyelets","visual_features":{"openings":[{"type":"large circular center opening","count":1,"location":"inside the ring"},{"type":"small circular eyelet hole","count":2,"location":"paired upright lugs at one split end"}],"recesses":["open split gaps in the annular band"],"protrusions":["thick circular band","paired upright eyelet lugs","angular bridge tabs at the split ends"],"repeated_structures":["paired eyelet lugs","opposed split-end tab details"],"symmetry":"approximately bilateral with opposed split details","surface_character":"thick curved band joined to angular tabs and vertical lugs"},"visual_caption_en":"A thick circular clamp band surrounds a large open center and is interrupted by split gaps with angular bridge tabs. One split end carries two parallel upright eyelet lugs, each with a circular hole, forming a hinge or fastener interface.","visual_caption_zh":"该零件是厚壁圆形夹环，中央完全开放，环带在分口处由折角连接片收尾。其中一处分口带两个平行竖直耳板，每个耳板均有圆孔，可作为铰接或紧固接口。","feature_tree_hint":["annular band sweep","split cuts","angular end-tab extrusions","paired eyelet lugs","two coaxial hole cuts"],"confidence":"high"} | |
| {"sample_id":"CBX100_0062","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"folded U-frame with central tongue","visual_features":{"openings":[],"recesses":["wide longitudinal gaps between center tongue and outer frame","shallow channels along raised side walls","small circular side embossment or recess"],"protrusions":["long flat central tongue","U-shaped outer strap","raised folded side walls","four squared terminal flanges"],"repeated_structures":["paired side walls","paired end flanges"],"symmetry":"strong bilateral symmetry along the length axis","surface_character":"thin folded-sheet geometry with rounded U-bends"},"visual_caption_en":"A long flat center tongue runs inside a separate U-shaped outer strap, leaving two wide longitudinal gaps. The strap bends around one end and rises into paired side walls with squared terminal flanges; a small circular detail appears on one outer wall.","visual_caption_zh":"该样本由细长中央平舌和外侧U形折弯带组成，两者之间保留两条宽纵向间隙。外带在一端圆弧折返，并形成成对高侧壁和方形端翼，其中一侧还有小圆形细节。","feature_tree_hint":["sheet-like center tongue extrusion","U-path strap sweep","paired wall folds","terminal flange extrusions","small side circular detail"],"confidence":"high"} | |
| {"sample_id":"CBX100_0063","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"faceted lobed barrel with concave ends","visual_features":{"openings":[],"recesses":["deep funnel-shaped concavity on the top","smaller axial dimple at the center","shallow concavity on the bottom"],"protrusions":["bulging barrel body","multiple broad vertical lobes"],"repeated_structures":["circumferential vertical lobe pattern"],"symmetry":"rotational with repeated lobes","surface_character":"low-poly bulged surface with faceted longitudinal ribs"},"visual_caption_en":"A compact barrel-shaped body bulges at mid-height and is divided into repeated broad vertical lobes. Its top contracts into a deep funnel-like concavity with a small axial dimple, while the bottom has a shallower centered depression.","visual_caption_zh":"该零件呈紧凑桶状，中段外鼓并由多条重复宽纵向瓣面分隔。顶部向内收成深漏斗形凹腔，中心还有小轴向凹点，底部则带较浅的居中凹面。","feature_tree_hint":["revolved bulged profile","circumferential lobe modulation","top funnel recess","axial dimple","bottom concave trim"],"confidence":"high"} | |
| {"sample_id":"CBX100_0064","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"domed protective shell with nested arches","visual_features":{"openings":[{"type":"mounting hole","count":2,"location":"two raised outer tabs"}],"recesses":["large front arch opening","smaller nested arch opening","hollow underside of the dome"],"protrusions":["large hemispherical shell","two nested curved arch bands","paired mounting tabs"],"repeated_structures":["nested concentric arch bands","paired hole tabs"],"symmetry":"strong bilateral symmetry","surface_character":"compound curved shell with concentric vaulted ribs"},"visual_caption_en":"A large domed shell is cut open at the front and reinforced by two nested curved arch bands. Two raised mounting tabs project from the outer dome, each containing a circular hole, while the underside remains hollow and open.","visual_caption_zh":"该样本为大型穹顶防护壳，前部开口并叠加两道同心弧形拱带。外壳上方左右各伸出一个带圆孔的安装耳，底面保持中空开放，整体强双侧对称。","feature_tree_hint":["hemispherical shell","front arch cut","two nested arch sweeps","paired mounting-tab extrusions","two hole cuts"],"confidence":"high"} | |
| {"sample_id":"CBX100_0065","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"square multi-bore distribution block","visual_features":{"openings":[{"type":"vertical cylindrical bore","count":25,"location":"five-by-five grid across the top"},{"type":"horizontal circular port","count":4,"location":"centered low on the four side walls"}],"recesses":["thin border step around the perforated top"],"protrusions":["thick square block","narrow raised top rim"],"repeated_structures":["five-by-five bore array","four side ports"],"symmetry":"fourfold rotational and biaxial symmetry","surface_character":"thick prismatic plate densely perforated by cylindrical bores"},"visual_caption_en":"A thick square distribution block contains twenty-five equal vertical cylindrical bores arranged in a five-by-five grid. A narrow rim frames the perforated top, and circular horizontal ports are centered low on the side walls, giving the block fourfold symmetry.","visual_caption_zh":"该零件为厚方形分配块，顶部以5×5方阵布置二十五个等径竖直圆柱孔，外围由窄凸缘框住。四个侧壁下部中央还设置水平圆形接口，整体具有四重对称。","feature_tree_hint":["square block extrusion","twenty-five-hole rectangular pattern","top perimeter step","four side-port cuts"],"confidence":"high"} | |
| {"sample_id":"CBX100_0066","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"segmented articulated link rail","visual_features":{"openings":[{"type":"transverse pivot bore","count":4,"location":"rounded hinge lugs between segments"}],"recesses":["stepped gaps between consecutive body segments"],"protrusions":["four faceted saddle-like blocks","rounded hinge lugs","raised end stops"],"repeated_structures":["four linked body modules","repeated coaxial hinge features"],"symmetry":"bilateral across the longitudinal center plane","surface_character":"angular modular chain with cylindrical joints"},"visual_caption_en":"Four faceted saddle-like body modules form a short articulated rail. Rounded hinge lugs with transverse bores connect the stepped segments, and squared end stops terminate the assembly. The repeated modules are mirrored across the longitudinal center plane.","visual_caption_zh":"该样本由四个棱面鞍形模块组成短节式导轨，相邻阶梯段通过带横向孔的圆角铰耳连接，两端以方形挡块收尾。重复模块关于纵向中心面对称。","feature_tree_hint":["repeated saddle-block extrusions","stepped segment arrangement","rounded hinge lugs","coaxial pivot-bore cuts","end stops"],"confidence":"medium"} | |
| {"sample_id":"CBX100_0067","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"hollow cylindrical grip sleeve","visual_features":{"openings":[{"type":"axial through-bore","count":1,"location":"center"}],"recesses":["four broad transverse finger scallops along one side"],"protrusions":["tall cylindrical sleeve"],"repeated_structures":["four vertically repeated scalloped grip recesses"],"symmetry":"axially symmetric base disrupted by one-sided grip cuts","surface_character":"smooth tube with a repeated wavy side profile"},"visual_caption_en":"A tall cylindrical sleeve has one large axial through-bore and an otherwise smooth round exterior. Four broad finger-sized scallops are cut in a vertical stack along one side, creating a repeated wavy grip profile while the opposite side remains straight.","visual_caption_zh":"该零件为高直圆柱套筒，中央贯穿一个大轴孔，外圆其余区域平滑。一侧沿高度连续切出四个宽大的指形弧凹，形成重复波浪握持轮廓，另一侧保持直壁。","feature_tree_hint":["tube extrusion","axial bore","four-scallop linear cut pattern","edge smoothing"],"confidence":"high"} | |
| {"sample_id":"CBX100_0068","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"open circular collar with locking hooks","visual_features":{"openings":[{"type":"large central opening","count":1,"location":"inside the collar"},{"type":"radial split","count":2,"location":"opposed breaks in the wall and base flange"}],"recesses":["interlocking notch profiles at the split ends"],"protrusions":["tall circular collar wall","wide scalloped base flange","hook-shaped locking tabs"],"repeated_structures":["opposed split-and-hook interfaces"],"symmetry":"approximately twofold rotational symmetry","surface_character":"thin curved wall on a broader planar flange with notched joints"},"visual_caption_en":"A tall open circular collar rises from a wider scalloped base flange. Opposed radial splits interrupt both wall and flange, and the split ends carry complementary hook-shaped tabs and notches that suggest a snap-lock or joining interface.","visual_caption_zh":"该样本由较宽的波瓣形底法兰和其上的高圆形开口围壁组成。相对两处分口同时切断围壁与法兰，端部带互补钩形凸片和缺口，呈现卡扣连接界面。","feature_tree_hint":["scalloped base-ring extrusion","circular wall extrusion","opposed split cuts","hook-and-notch end profiles"],"confidence":"high"} | |
| {"sample_id":"CBX100_0069","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"long rod with terminal eye","visual_features":{"openings":[{"type":"circular eye bore","count":1,"location":"annular lug at one end"}],"recesses":[],"protrusions":["long slender cylindrical rod","thick annular terminal lug"],"repeated_structures":[],"symmetry":"axial along the rod with a planar eye at one end","surface_character":"smooth round shaft blended into a short cylindrical eyelet"},"visual_caption_en":"A very long slender round rod has a plain rounded free end and a thick annular eye at the opposite end. The eye contains one circular through-hole oriented perpendicular to the shaft, with a short blended transition into the rod.","visual_caption_zh":"该零件是一根很长的细圆杆，自由端圆滑，另一端增厚形成环形耳。耳部包含一个与杆轴垂直的圆通孔，并通过短圆滑过渡段连接到杆身。","feature_tree_hint":["cylindrical rod extrusion","terminal annular lug","transverse eye-bore cut","blend fillet"],"confidence":"high"} | |
| {"sample_id":"CBX100_0070","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"faceted shoe-like chassis","visual_features":{"openings":[],"recesses":["large irregular top cavity","stepped interior floor","angular side reliefs"],"protrusions":["thick curved sole-like base","high enclosing side walls","two rectangular upright posts","bulged faceted toe and heel regions"],"repeated_structures":["paired upright posts"],"symmetry":"rough bilateral symmetry with asymmetric faceted details","surface_character":"low-poly organic-prismatic shell with an open top"},"visual_caption_en":"A low-poly shoe-like chassis has a thick curved sole, high faceted side walls, and a large irregular open cavity on top. Two rectangular posts rise from the interior near opposite regions, while the toe and heel ends form bulky angular volumes.","visual_caption_zh":"该样本呈低多边形鞋状底盘，具有厚而弯曲的底面、高棱面侧壁及大型不规则顶部开腔。内部相对区域竖起两个矩形柱，前后端则形成饱满的多面体块状体量。","feature_tree_hint":["faceted sole loft","open-top shell construction","interior cavity cut","two post extrusions","angular side reliefs"],"confidence":"medium"} | |
| {"sample_id":"CBX100_0071","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"open-front rectangular storage housing","visual_features":{"openings":[{"type":"large rectangular front opening","count":1,"location":"front face"},{"type":"rectangular handle opening","count":1,"location":"raised top bridge"}],"recesses":["shallow inset panel beneath the top handle","long internal floor channel"],"protrusions":["rounded box shell","raised bridge handle","lower front flap or shelf","paired small hinge-like cylinders"],"repeated_structures":["paired lower hinge details"],"symmetry":"strong bilateral symmetry about the vertical center plane","surface_character":"filleted prismatic enclosure with a broad open front"},"visual_caption_en":"A rounded rectangular storage housing has a broad open front and a shallow lower shelf or flap. A raised bridge handle spans a rectangular recess on top, and two small hinge-like cylindrical details sit along the lower front edge. The enclosure is bilaterally symmetric.","visual_caption_zh":"该样本为圆角矩形收纳壳体，正面大面积开放，下部带浅搁板或翻板。顶部凸起桥式提手并围出矩形开口，前下缘两侧设有小型圆柱铰接细节，整体左右对称。","feature_tree_hint":["filleted box shell","front opening cut","top handle bridge","top rectangular recess","lower shelf and paired hinge details"],"confidence":"high"} | |
| {"sample_id":"CBX100_0072","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"perforated twin-rail channel","visual_features":{"openings":[{"type":"circular transverse hole","count":18,"location":"nine evenly spaced holes on each side rail"},{"type":"longitudinal slot","count":1,"location":"between the two upper rails"}],"recesses":["continuous central channel","small stepped notches near one end"],"protrusions":["two long parallel rounded rails","lower central web"],"repeated_structures":["nine-hole linear pattern on each side","mirrored rail pair"],"symmetry":"bilateral with strong linear repetition","surface_character":"long narrow channel with rounded rail edges and repeated bores"},"visual_caption_en":"Two long parallel rails form a narrow channel with a continuous slot between them. Each side carries a matching row of nine circular transverse holes, and small stepped notches appear near one end. The rail pair is strongly bilateral and repetitive.","visual_caption_zh":"该零件由两根细长平行导轨组成，中间保留连续纵向槽。每侧均排列九个相互对应的横向圆孔，一端附近还有小型阶梯缺口，结构具有强双侧对称和线性重复。","feature_tree_hint":["twin-rail extrusion","central longitudinal slot","two nine-hole linear patterns","end notch cuts","edge fillets"],"confidence":"medium"} | |
| {"sample_id":"CBX100_0073","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"rounded rectangular socket block","visual_features":{"openings":[],"recesses":["single large circular blind socket centered on one end face"],"protrusions":["solid elongated rounded rectangular block"],"repeated_structures":[],"symmetry":"biaxial except for the one-ended socket","surface_character":"smooth filleted rectangular prism with one deep cylindrical recess"},"visual_caption_en":"A solid elongated rectangular block has heavily rounded edges and corners. One end face contains a single large, deep circular blind socket with a rounded entrance; the long side faces and opposite end remain plain.","visual_caption_zh":"该样本为实心细长圆角矩形块，所有棱角均大幅圆滑处理。其中一个端面中央切有单个深圆形盲孔，孔口圆滑，长侧面和另一端保持简洁。","feature_tree_hint":["filleted rectangular-prism extrusion","single end-face cylindrical pocket","entrance fillet"],"confidence":"high"} | |
| {"sample_id":"CBX100_0074","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"gently curved hollow tube","visual_features":{"openings":[{"type":"axial tube opening","count":2,"location":"both end faces"}],"recesses":["small notch on one end rim"],"protrusions":["single thick-walled curved tubular body","slight rim step at one end"],"repeated_structures":[],"symmetry":"symmetric through the bending plane","surface_character":"smooth hollow circular section swept along a broad curved path"},"visual_caption_en":"A thick-walled hollow tube follows a broad gentle curve while retaining an almost constant circular section. Both ends are open, and one rim includes a small notch or stepped lip. The outer surface is smooth and free of side branches.","visual_caption_zh":"该零件是一根厚壁中空弯管，沿宽缓曲线路径延伸并基本保持恒定圆截面，两端均开放。其中一端口带小缺口或阶梯唇边，外壁光滑且无侧向分支。","feature_tree_hint":["annular profile sweep","planar curved path","open end trims","small rim-notch cut"],"confidence":"high"} | |
| {"sample_id":"CBX100_0075","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"reinforced rectangular equipment tray","visual_features":{"openings":[{"type":"corner mounting bore","count":4,"location":"four cylindrical corner bosses"},{"type":"small circular side hole","count":8,"location":"rows along the long perimeter rails"},{"type":"rectangular side window","count":4,"location":"perimeter frame walls"}],"recesses":["large shallow central floor","two offset rectangular framed pockets"],"protrusions":["rectangular perimeter frame","four corner bosses","diagonal side braces","two raised internal rectangular frames"],"repeated_structures":["four corner mounting bosses","side-hole rows","perimeter windows"],"symmetry":"frame is biaxial; internal pockets are asymmetrically offset","surface_character":"thin structural tray with rails, bosses, windows, and internal ribs"},"visual_caption_en":"A shallow rectangular equipment tray is enclosed by a reinforced perimeter frame with diagonal braces and open side windows. Four cylindrical corner bosses contain mounting bores, small holes repeat along the long rails, and two offset raised rectangular frames divide the interior floor.","visual_caption_zh":"该样本为浅矩形设备托盘，外围框架带斜撑和开放侧窗。四角圆柱凸台均有安装孔，长边导轨上重复排列小孔，内部底面由两个错位的凸起矩形框分区。","feature_tree_hint":["rectangular tray shell","perimeter rail and brace extrusions","four corner bosses and bores","side window and hole patterns","two internal pocket frames"],"confidence":"high"} | |
| {"sample_id":"CBX100_0076","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"ornate transport-themed rectangular relief panel","visual_features":{"openings":[{"type":"large circular ring opening","count":3,"location":"distributed across the panel"},{"type":"numerous small open gaps","count":"many","location":"within vehicle-like and rail-like motifs"}],"recesses":[],"protrusions":["thin rectangular border frame","three large circular rings with internal bar motifs","several wheel-and-frame vehicle-like reliefs","parallel rail bundles","multiple corner tabs and rectangular plates"],"repeated_structures":["circular wheel motifs","parallel rails","paired corner tabs"],"symmetry":"complex composition with approximate rotational balance but no exact global symmetry","surface_character":"dense thin extruded linework and layered relief geometry"},"visual_caption_en":"A thin rectangular border contains a dense relief composition of three large circular rings with internal bar symbols, several wheel-and-frame vehicle-like motifs, parallel rail bundles, flat panels, and many small connectors. Rectangular tabs project beyond the frame at the corners.","visual_caption_zh":"该样本是在薄矩形边框内构成的密集浮雕组合，包含三个带内部横杆符号的大圆环、多个轮架式交通工具图案、平行导轨束、平板和众多细连接件，四角还有伸出边框的矩形片。","feature_tree_hint":["rectangular border sweep","three annular motif extrusions","layered vehicle-like profiles","parallel rail patterns","corner-tab array"],"confidence":"medium"} | |
| {"sample_id":"CBX100_0077","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"five-lobed floral column cluster","visual_features":{"openings":[],"recesses":["deep valleys between adjacent columns","central separations between overlapping top petals"],"protrusions":["five tall flared lobed columns","five broad heart-shaped top petals","small star-like base hub","one narrow curved side strip"],"repeated_structures":["five radial column-and-petal modules"],"symmetry":"approximately fivefold rotational symmetry with one asymmetric side strip","surface_character":"smooth organic lofts with flared walls and broad folded caps"},"visual_caption_en":"Five tall flared lobed columns cluster radially around a small central base. Each column ends in a broad heart-shaped or petal-like cap, and deep valleys separate the modules. A single narrow curved strip rises along one side, interrupting the approximate fivefold symmetry.","visual_caption_zh":"该零件由五个高挑外扩的瓣状柱围绕小型中央底座径向聚合，每个柱顶形成宽大的心形或花瓣形盖面，模块之间有深谷分隔。一条狭窄弯带沿侧面上升，使近似五重对称略被打破。","feature_tree_hint":["fivefold radial loft pattern","lobed column profiles","petal-cap lofts","central base hub","single curved side sweep"],"confidence":"medium"} | |
| {"sample_id":"CBX100_0078","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"crossed double-dome shell","visual_features":{"openings":[],"recesses":["four deep saddle valleys where domes intersect","large concave underside","central side dimples at the crossing"],"protrusions":["two broad intersecting domed shells","four low rectangular feet"],"repeated_structures":["paired perpendicular dome surfaces","four support feet"],"symmetry":"fourfold rotational and biaxial symmetry","surface_character":"smooth compound doubly curved roof surface"},"visual_caption_en":"Two broad shallow domes intersect at right angles to form a crossed roof-like shell. Their overlap creates four saddle valleys and central side dimples, while four short rectangular feet project below the open concave underside. The form is fourfold symmetric.","visual_caption_zh":"该样本由两片宽缓穹顶面相互垂直交叉，形成十字屋面式外壳。交叠处产生四个鞍形谷和侧向中心凹点，中空凹曲底面下伸出四个短矩形脚，整体四重对称。","feature_tree_hint":["two perpendicular dome lofts","boolean union and saddle blending","underside shell offset","four-foot rectangular pattern"],"confidence":"high"} | |
| {"sample_id":"CBX100_0079","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"round control puck with upright handle","visual_features":{"openings":[],"recesses":["single shallow triangular radial groove on the top disk"],"protrusions":["wide low circular disk","raised rounded perimeter rim","central narrow neck","tall teardrop-shaped handle"],"repeated_structures":[],"symmetry":"rotational base with one directional top groove","surface_character":"smooth revolved disk and ergonomic organic handle"},"visual_caption_en":"A wide low circular puck has a rounded perimeter rim and a tall central teardrop-shaped handle joined through a short flared neck. A single shallow triangular groove runs radially across the top surface, adding directionality to the otherwise axisymmetric form.","visual_caption_zh":"该零件为宽而低的圆形控制盘，外围带圆滑凸缘，中央通过短外扩颈部连接高直水滴形手柄。顶面仅有一条浅三角径向槽，使原本轴对称的造型具有方向性。","feature_tree_hint":["revolved disk and rim","central neck revolve","teardrop handle loft","single radial groove cut"],"confidence":"high"} | |
| {"sample_id":"CBX100_0080","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"oval bezel with rectangular center window","visual_features":{"openings":[{"type":"large rounded rectangular window","count":1,"location":"center of the oval frame"}],"recesses":["annular inner step around the outer oval rim"],"protrusions":["thick oval perimeter ring","four broad inward-curving bridge pads"],"repeated_structures":["four inward pads arranged at top, bottom, left, and right"],"symmetry":"biaxial symmetry","surface_character":"rounded oval ring blended into four lens-shaped inner supports"},"visual_caption_en":"A thick rounded oval bezel surrounds one large central window whose boundary is nearly rectangular with concave-curved sides. Four broad inward pads bridge from the outer ring at the top, bottom, left, and right, creating a strongly biaxial frame.","visual_caption_zh":"该样本为厚圆角椭圆饰框，中央形成一个近矩形的大开窗，四侧边界向内弯曲。上、下、左、右各有一个宽大的内伸桥垫与外环相连，构成强双轴对称框架。","feature_tree_hint":["oval ring extrusion","central rounded-rectangle cut","four inward bridge pads","perimeter fillets"],"confidence":"high"} | |
| {"sample_id":"CBX100_0081","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"decorated squat domed shell with separate disk","visual_features":{"openings":[],"recesses":["broad smiling curved groove on the front","two small eye-like surface marks","shallow circumferential groove near the outer rim"],"protrusions":["squat rounded dome body","three parallel rounded fins on top","separate thin circular disk below the body"],"repeated_structures":["three top fins","paired eye-like marks"],"symmetry":"approximately bilateral about the decorated front plane","surface_character":"smooth organic dome with embossed and incised decorative details"},"visual_caption_en":"A squat rounded dome carries a face-like decoration made from a broad curved smile groove and two small eye marks. Three parallel rounded fins rise from the top, and a separate thin circular disk is positioned below the main body. A shallow rim groove follows part of the dome.","visual_caption_zh":"该样本主体为低矮圆润穹顶，正面以宽弧形笑纹和两个小眼状刻痕形成面部装饰。顶部竖起三条平行圆头凸鳍，主体下方另有一片分离的薄圆盘，外缘局部还有浅环槽。","feature_tree_hint":["revolved squat dome","smile and eye surface cuts","three-fin linear pattern","partial perimeter groove","separate disk extrusion"],"confidence":"medium"} | |
| {"sample_id":"CBX100_0082","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"rounded two-hole link bar","visual_features":{"openings":[{"type":"circular through-hole","count":2,"location":"one near each end"}],"recesses":["broad countersunk or filleted entrances around both holes"],"protrusions":["single elongated rounded rectangular bar"],"repeated_structures":["matched end holes"],"symmetry":"twofold rotational and bilateral symmetry","surface_character":"smooth filleted prismatic link with blended circular bores"},"visual_caption_en":"An elongated rounded rectangular link bar contains two equal circular through-holes, one near each end. Each bore has a broad smoothly blended entrance, while the center span remains solid and slightly crowned. The part is end-for-end symmetric.","visual_caption_zh":"该零件为细长圆角矩形连杆，两端附近各有一个等径圆通孔，孔口均采用宽缓圆滑过渡。中央跨段保持实心并略带拱起，结构首尾对称。","feature_tree_hint":["rounded-rectangle bar extrusion","two end-hole cuts","bore entrance blends","outer edge fillets"],"confidence":"high"} | |
| {"sample_id":"CBX100_0083","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"segmented circular platform with radial slot","visual_features":{"openings":[{"type":"small vertical hole","count":4,"location":"cardinal points around the disk"},{"type":"narrow radial slot","count":1,"location":"from the perimeter toward the center"}],"recesses":["polygonal stepped top sectors","open underside sectors around the central support"],"protrusions":["thick circular top plate","curved outer skirt","central underside cylindrical boss","radial underside ribs"],"repeated_structures":["four cardinal holes","radial sector panels and ribs"],"symmetry":"approximately fourfold except for the single radial slot","surface_character":"faceted disk composed of radial panels over a ribbed underside"},"visual_caption_en":"A thick circular platform is divided into faceted radial top sectors and pierced by four small holes at cardinal positions. One narrow radial slot cuts inward from the perimeter. Below, a central cylindrical boss and radiating ribs support a curved outer skirt.","visual_caption_zh":"该样本为厚圆形平台，顶面由多块棱面径向扇区组成，并在四个正交方位设置小孔。一条狭窄径向槽从外缘切入，底部则由中央圆柱座、放射筋和弧形外裙共同支撑。","feature_tree_hint":["circular plate extrusion","radial panel construction","four-hole polar pattern","single radial slot cut","underside boss and rib pattern"],"confidence":"medium"} | |
| {"sample_id":"CBX100_0084","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"open-top square bin with hinged side panels","visual_features":{"openings":[{"type":"large square top opening","count":1,"location":"top"}],"recesses":["hollow interior","gaps beneath side panels"],"protrusions":["tall square container walls","circular base flange","four lower hemispherical bulges","two opposed sloped side panels","rounded hinge bars and loop handles"],"repeated_structures":["four lower bulges","paired side panel and handle assemblies"],"symmetry":"approximately bilateral with repeated four-sided lower details","surface_character":"faceted square vessel combined with curved hinge and dome features"},"visual_caption_en":"A tall square open-top bin stands on a circular base flange. Four hemispherical bulges surround its lower walls, while two opposed sides carry sloped panels attached by rounded hinge bars and loop-like handles. The interior is fully hollow.","visual_caption_zh":"该零件为高直方形开口容器，底部设圆形法兰，四侧下部各有半球形凸包。两相对侧安装斜置面板，并配圆角铰杆和环形把手，内部整体中空。","feature_tree_hint":["square vessel shell","circular base flange","four-dome side pattern","paired hinged panel assemblies","loop-handle sweeps"],"confidence":"high"} | |
| {"sample_id":"CBX100_0085","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"double-socket finned coupling","visual_features":{"openings":[{"type":"square axial socket","count":2,"location":"opposed flared cylindrical bosses"}],"recesses":["concave neck between the two socket bosses","triangular open spaces between fins"],"protrusions":["two opposed flared round bosses","four large triangular fins","central curved connecting web"],"repeated_structures":["paired socket bosses","two crossed fin pairs"],"symmetry":"twofold rotational with mirrored fin pairs","surface_character":"angular fin structure blended into round tapered sockets"},"visual_caption_en":"Two opposed flared round bosses, each containing a square axial socket, are joined by a curved central neck. Four large triangular fins cross around the connection and leave open triangular spaces between them, producing a balanced mechanical coupling form.","visual_caption_zh":"该样本由两个相对的外扩圆形凸台组成，每个凸台中央均有方形轴向插孔，两者通过弯曲中颈连接。连接区周围交叉布置四片大型三角翼板，翼板之间形成开放三角区。","feature_tree_hint":["two flared boss revolves","two square socket cuts","central connecting sweep","two mirrored triangular-fin pairs"],"confidence":"high"} | |
| {"sample_id":"CBX100_0086","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"asymmetric hollow ergonomic shell","visual_features":{"openings":[{"type":"large oval top opening","count":1,"location":"upper side of the shell"}],"recesses":["deep internal cavity","large concave underside sweep","localized side dimple"],"protrusions":["thick bulbous outer shell","raised asymmetric back rim"],"repeated_structures":[],"symmetry":"organic and asymmetric","surface_character":"smooth thick-walled freeform shell with a bulbous exterior"},"visual_caption_en":"A thick freeform shell has a bulbous rounded exterior and one large oval opening cut into its upper side. The opening leads to a deep cavity with a near-vertical inner wall, while the underside sweeps inward and one exterior side carries a localized dimple.","visual_caption_zh":"该样本为厚壁自由曲面壳体，外形饱满圆润，上侧切出一个大型椭圆开口并通向深内腔，内壁近乎竖直。底面向内收拢，外侧局部还有一个凹点，整体非对称。","feature_tree_hint":["freeform outer loft","inner cavity offset","oval opening trim","underside blend","localized side depression"],"confidence":"high"} | |
| {"sample_id":"CBX100_0087","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"stacked multi-lug mounting bracket","visual_features":{"openings":[{"type":"vertical lug hole","count":4,"location":"four rounded horizontal mounting arms"},{"type":"transverse ear hole","count":2,"location":"upper and lower vertical ears"}],"recesses":["two large gaps separating the stacked arms","curved reliefs at the central spine"],"protrusions":["central vertical spine","four rounded horizontal lugs","upper and lower triangular mounting ears"],"repeated_structures":["two stacked lug pairs","paired vertical mounting ears"],"symmetry":"approximately twofold about the horizontal mid-plane","surface_character":"compact prismatic bracket with blended arm roots and multiple bores"},"visual_caption_en":"A central vertical spine supports four rounded horizontal mounting lugs arranged as two stacked pairs, each lug containing a vertical hole. Triangular ears at the upper and lower ends add two transverse holes, while broad gaps separate the paired arms.","visual_caption_zh":"该零件以中央竖脊连接四个圆头水平安装耳，耳板按上下两对叠置且各有竖直孔。顶部和底部另设三角竖耳并各带一个横向孔，成对横臂之间留有宽间隙。","feature_tree_hint":["central spine extrusion","four-lug stacked pattern","four vertical bore cuts","upper and lower ear extrusions","two transverse bore cuts"],"confidence":"high"} | |
| {"sample_id":"CBX100_0088","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"stylized rounded animal figure","visual_features":{"openings":[],"recesses":["shallow groove separating front facial layers","underside cut plane"],"protrusions":["large oval domed body","small rounded head or snout","two arched ear-like loops","short rounded feet","small rear tail nub"],"repeated_structures":["paired ears","paired feet"],"symmetry":"approximately bilateral","surface_character":"smooth organic toy-like volumes with a flat base"},"visual_caption_en":"A stylized animal-like figure has a large smooth oval domed body, a small layered head or snout, two arched ear-like loops, short rounded feet, and a small tail nub at the rear. The underside is flattened so the compact figure can rest on a plane.","visual_caption_zh":"该样本是圆润玩具式动物造型，主体为大型椭圆穹顶，前部带分层小头或吻部、两个拱形耳状环和短圆脚，后部还有小尾突。底面被削平，便于整体稳定放置。","feature_tree_hint":["oval body loft","head and snout unions","paired ear sweeps","paired foot blobs","tail nub and bottom trim"],"confidence":"medium"} | |
| {"sample_id":"CBX100_0089","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"dished wheel with central bore","visual_features":{"openings":[{"type":"axial through-hole","count":1,"location":"center"}],"recesses":["wide annular dish on both faces"],"protrusions":["thick cylindrical outer band","rounded toroidal rim","central annular web"],"repeated_structures":[],"symmetry":"full rotational symmetry and mirror symmetry through the mid-plane","surface_character":"smooth revolved wheel profile with rounded rim and dished faces"},"visual_caption_en":"A thick circular wheel has one central axial through-hole, a broad recessed annular dish on each face, and a rounded toroidal outer rim. The side wall remains cylindrical, and the entire profile is rotationally symmetric about the bore axis.","visual_caption_zh":"该零件为厚圆轮，中央贯穿一个轴孔，两侧面均形成宽环形凹盘，外缘为圆滑环面凸边。侧壁保持圆柱形，整体绕孔轴完全旋转对称。","feature_tree_hint":["single revolved wheel profile","central axial bore","paired face dishes","outer rim fillet"],"confidence":"high"} | |
| {"sample_id":"CBX100_0090","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"tall flared cup fitting with tubular stem","visual_features":{"openings":[{"type":"deep flared cup opening","count":1,"location":"top"},{"type":"axial stem bore","count":1,"location":"through the lower tube and base flange"}],"recesses":["two narrow circumferential grooves around the neck"],"protrusions":["wide rolled top rim","deep tapered cup","stacked ring collars","long cylindrical stem","thin circular bottom flange"],"repeated_structures":["stacked neck collars"],"symmetry":"full rotational symmetry","surface_character":"smooth multi-stage revolved fitting"},"visual_caption_en":"A tall axisymmetric fitting combines a deep flared cup with a thick rolled rim, two stacked neck collars, a long cylindrical tubular stem, and a thin circular base flange. The top cavity continues into an axial passage through the stem and lower flange.","visual_caption_zh":"该样本为高直轴对称旋转件，由深外扩杯口、厚卷边、两级叠置颈环、细长圆柱管柄和薄圆形底法兰组成。顶部内腔延伸为贯穿管柄及底法兰的轴向通道。","feature_tree_hint":["single multi-stage revolved profile","deep cup cavity","stacked neck grooves","hollow stem bore","base flange"],"confidence":"high"} | |
| {"sample_id":"CBX100_0091","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"ribbed half-cylinder equipment cover","visual_features":{"openings":[{"type":"rectangular top slot","count":2,"location":"between raised arch groups"}],"recesses":["long hollow underside cavity","recessed bays between transverse ribs","rectangular lattice pockets on the underside"],"protrusions":["semicylindrical outer shell","flat rectangular base rails","six narrow transverse arch ribs arranged in two groups","thicker rounded end caps"],"repeated_structures":["two groups of three arch ribs","underside rectangular lattice"],"symmetry":"bilateral along the longitudinal center plane with grouped linear repetition","surface_character":"arched shell reinforced by repeated ribs over a prismatic base"},"visual_caption_en":"A semicylindrical equipment cover sits on two flat longitudinal base rails. Six narrow arch ribs are arranged as two groups of three across the curved shell, with two rectangular slots between the groups. The open underside contains a repeated rectangular lattice.","visual_caption_zh":"该零件为半圆柱设备护罩，安装在两条平行纵向底轨上。曲面上横跨六道窄拱筋，分成两组三道，并在组间形成两个矩形顶槽；中空底面带重复矩形格栅。","feature_tree_hint":["half-cylinder shell extrusion","longitudinal base rails","two three-rib linear patterns","two rectangular top cuts","underside lattice pattern"],"confidence":"high"} | |
| {"sample_id":"CBX100_0092","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"dense radial layered fin cluster","visual_features":{"openings":["numerous narrow gaps between overlapping fins"],"recesses":["deep irregular central depression","stepped valleys between radial layers"],"protrusions":["many thin jagged plate-like fins","multiple concentric radial tiers","long pointed spikes projecting outward"],"repeated_structures":["circumferential fin arrays at several radii"],"symmetry":"approximate radial symmetry with intentionally irregular fin lengths","surface_character":"highly complex faceted organic cluster of overlapping sharp sheets"},"visual_caption_en":"A dense roughly radial cluster is built from many overlapping jagged plate-like fins arranged in several concentric tiers. Long pointed spikes extend outward, shorter folded plates crowd the center, and a deep irregular depression remains between the layers.","visual_caption_zh":"该样本是高密度近径向片层簇，由多圈相互重叠的锯齿状薄翼板组成。长尖刺向外伸展，较短折片在中心密集堆叠，并在多层之间留下深而不规则的中央凹谷。","feature_tree_hint":["multiple radial fin profile families","several circumferential patterns","tiered offsets and rotations","central irregular subtraction"],"confidence":"high"} | |
| {"sample_id":"CBX100_0093","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"round recessed mounting plate with raised guard","visual_features":{"openings":[{"type":"large plate through-hole","count":2,"location":"offset across the recessed center"},{"type":"small eyelet bore","count":1,"location":"raised rear lug"}],"recesses":["broad circular center dish","large sector cut interrupting the outer rim"],"protrusions":["thick rounded toroidal outer rim","semicircular raised inner guard rail","central rear eyelet lug"],"repeated_structures":["paired plate holes"],"symmetry":"partially bilateral; the rim cut and rear guard create directionality","surface_character":"rounded annular frame surrounding a thin dished plate"},"visual_caption_en":"A thick rounded circular rim surrounds a shallow recessed center plate containing two offset through-holes. A raised semicircular guard follows the rear inner edge and terminates at a small bored eyelet, while a broad sector cut opens the outer rim at the front.","visual_caption_zh":"该零件以厚圆滑外环包围浅凹中心板，板上有两个错位通孔。后侧内缘设置半圆凸起护轨并在中央形成带孔小耳，前侧外环则被宽扇形切口打开。","feature_tree_hint":["rounded annular rim","recessed center plate","two plate-hole cuts","semicircular guard sweep","eyelet boss and front sector cut"],"confidence":"high"} | |
| {"sample_id":"CBX100_0094","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"ribbed rectangular washboard with tubular header","visual_features":{"openings":[{"type":"axial tube opening","count":1,"location":"large rounded header at one end"}],"recesses":["seven long channels between parallel rails"],"protrusions":["eight long rectangular rails","large hollow cylindrical end header","raised central rectangular traction pad","dense grid of small pyramidal studs"],"repeated_structures":["eight parallel rails","regular two-dimensional stud array"],"symmetry":"bilateral along the length axis","surface_character":"long prismatic ribbed plate with one rounded tubular end and textured center"},"visual_caption_en":"Eight long parallel rectangular rails form a ribbed washboard with seven continuous channels. One end is capped by a large hollow cylindrical header, and a raised rectangular pad near that end carries a dense regular grid of small pyramidal studs.","visual_caption_zh":"该样本由八条细长平行矩形轨组成搓板式底面，轨间形成七条连续槽。一端连接大型中空圆柱横梁，其附近的凸起矩形垫上密布规则小金字塔形防滑凸点。","feature_tree_hint":["eight-rail linear pattern","seven longitudinal channels","hollow cylindrical header","raised rectangular pad","two-dimensional stud pattern"],"confidence":"high"} | |
| {"sample_id":"CBX100_0095","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"oval scoop with straight handle","visual_features":{"openings":[],"recesses":["deep oval bowl cavity"],"protrusions":["thick oval rim","shallow tapered bowl body","long straight rectangular handle with rounded edges"],"repeated_structures":[],"symmetry":"bilateral along the handle and bowl centerline","surface_character":"smooth oval dish blended into a simple prismatic handle"},"visual_caption_en":"A shallow oval scoop has a deep continuous bowl cavity and a thick smoothly rounded rim. A long straight rectangular handle extends from one narrow end and blends into the bowl with tapered shoulders; no holes or secondary details are visible.","visual_caption_zh":"该零件为浅椭圆勺斗，内部形成连续深碗腔，外围是厚而圆滑的椭圆边。细长直矩形手柄从窄端伸出，通过渐缩肩部与碗体连接，未见孔或附加细节。","feature_tree_hint":["oval bowl loft","inner cavity offset","thick rim blend","straight handle extrusion","tapered handle-to-bowl transition"],"confidence":"high"} | |
| {"sample_id":"CBX100_0096","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"five-lobed flower rotor","visual_features":{"openings":[],"recesses":["five deep curved valleys between adjacent lobes"],"protrusions":["five broad rounded heart-shaped lobes","central hemispherical button","thin central web joining the lobes"],"repeated_structures":["five identical radial lobes"],"symmetry":"fivefold rotational symmetry","surface_character":"thick constant-depth rounded lobes around a smooth central dome"},"visual_caption_en":"Five identical broad heart-shaped lobes radiate from a central web to form a flower-like rotor. Deep curved valleys separate the lobes, and a smooth hemispherical button rises at the center. The outline has clear fivefold rotational symmetry.","visual_caption_zh":"该样本由五个相同的宽心形圆头瓣围绕中央连接板径向展开，瓣之间形成五条深弧谷，中心凸起光滑半球按钮。外轮廓具有明确五重旋转对称。","feature_tree_hint":["single lobe profile","fivefold polar pattern","central web union","hemispherical center boss","edge fillets"],"confidence":"high"} | |
| {"sample_id":"CBX100_0097","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"domed cylindrical vessel with side chutes","visual_features":{"openings":[{"type":"large circular bottom opening","count":1,"location":"base of the main cylinder"},{"type":"small lateral circular port","count":2,"location":"opposed upper sides"}],"recesses":["open underside cavity","channels inside the side chute forms"],"protrusions":["tall cylindrical shell","hemispherical top dome","stacked circular top neck and cap","two large opposed flared side chutes","two smaller lower fin-like ledges"],"repeated_structures":["paired side ports","paired side chutes and lower ledges"],"symmetry":"approximately bilateral with opposed side attachments","surface_character":"cylindrical and domed vessel combined with folded sheet-like appendages"},"visual_caption_en":"A tall cylindrical vessel is open at the bottom and closed by a hemispherical dome with a short stacked neck and cylindrical cap. Two opposed upper side ports feed broad flared chute-like panels, while smaller fin-shaped ledges project lower on the body.","visual_caption_zh":"该样本为高圆柱容器，底部大圆口开放，顶部由半球穹顶封闭并叠置短环颈和圆柱帽。上部两侧的圆形接口连接宽大外扩溜槽式面板，较低位置另有小型翼状搁片。","feature_tree_hint":["cylindrical shell","hemispherical dome union","top neck and cap revolves","paired side-port cuts","paired chute and ledge extrusions"],"confidence":"high"} | |
| {"sample_id":"CBX100_0098","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"irregular eight-petal organic flange","visual_features":{"openings":[{"type":"central circular through-hole","count":1,"location":"raised center boss"}],"recesses":["deep valleys between the organic petals"],"protrusions":["eight unequal curved petal arms","raised annular center boss","locally curled and upturned petal tips"],"repeated_structures":["radial family of eight petal-like arms"],"symmetry":"approximate radial balance without exact symmetry","surface_character":"thin freeform organic surface with smoothly twisted petals"},"visual_caption_en":"Eight unequal organic petal arms spread around a raised annular center boss containing one circular through-hole. Several petals curl or lift at their tips, and deep valleys separate the freeform surfaces, giving the flange radial balance without exact repetition.","visual_caption_zh":"该样本由八条不等长有机花瓣臂围绕凸起中央环形座展开，中心贯穿一个圆孔。多片花瓣端部卷曲或上扬，自由曲面之间形成深谷，整体径向均衡但并非严格对称。","feature_tree_hint":["eight freeform petal lofts","radial arrangement with varied transforms","central annular boss","central bore cut","surface blends"],"confidence":"high"} | |
| {"sample_id":"CBX100_0099","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"six-post cylindrical cage spool","visual_features":{"openings":["six tall open bays between the outer posts"],"recesses":["annular space between the central drum and outer posts"],"protrusions":["wide circular top and bottom plates","large central cylindrical drum","six evenly spaced vertical outer posts","single central upper shaft"],"repeated_structures":["six-post circumferential pattern"],"symmetry":"sixfold rotational symmetry","surface_character":"simple cylindrical cage assembled from plates, drum, rods, and shaft"},"visual_caption_en":"A central cylindrical drum is enclosed by six evenly spaced vertical posts between wide circular top and bottom plates, leaving six tall open bays around the perimeter. A single solid shaft rises from the center of the upper plate, producing a sixfold cage-like spool.","visual_caption_zh":"该零件由宽圆形上下端板夹持中央圆柱鼓体，外围均布六根竖直立柱，柱间形成六个高开敞窗。上端板中央另伸出一根实心轴，整体为六重对称笼式卷筒。","feature_tree_hint":["central drum extrusion","top and bottom plate extrusions","six-post polar pattern","central upper shaft"],"confidence":"high"} | |
| {"sample_id":"CBX100_0100","annotation_method":"manual_visual_inspection_of_four_view_render","primary_form":"stylized four-limbed reptile figure","visual_features":{"openings":[],"recesses":["shallow groove along the back","valleys between body and limbs"],"protrusions":["rounded central torso","four splayed bent limbs with bulbous feet","long tapered tail","raised head and snout","two curled dorsal loops or crests"],"repeated_structures":["paired front limbs","paired rear limbs","paired dorsal crest forms"],"symmetry":"approximately bilateral with an asymmetrically curved tail and limbs","surface_character":"smooth organic toy-like anatomy with blended limbs"},"visual_caption_en":"A stylized reptile- or amphibian-like figure has a rounded torso, four splayed bent limbs ending in bulbous feet, a raised head with a blunt snout, and a long tapering tail. Two curled loop-like crests rise from the back, and all body transitions are smoothly blended.","visual_caption_zh":"该样本是卡通爬行类或两栖类造型，具有圆润躯干、四条向外弯曲并以球状足端收尾的肢体、抬起的钝吻头部以及细长渐缩尾巴。背部竖起两个卷环状冠突，各部位平滑融合。","feature_tree_hint":["organic torso loft","four blended limb sweeps","head and snout union","tapered tail sweep","paired curled dorsal crests"],"confidence":"medium"} | |