https://huggingface.co/datasets/PerseusLjf/Dynamics_Simulation_Dataset/resolve/main/3p2d_train/21/u.csv
hf download hf://datasets/PerseusLjf/Dynamics_Simulation_Dataset/3p2d_train/21/u.csv
curl -L -o u.csv https://huggingface.co/datasets/PerseusLjf/Dynamics_Simulation_Dataset/resolve/main/3p2d_train/21/u.csv
