训练和测试
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.. toctree::
   :maxdepth: 1

   config.md
   coord_sys_tutorial.md
   dataset_prepare.md
   data_pipeline.md
   train_test.md
   inference.md
   new_data_model.md

实用工具
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.. toctree::
   :maxdepth: 1

   useful_tools.md
   visualization.md
   backends_support.md
   model_deployment.md
