因此，对气动机械手的研究具有重要的实际价值。

Therefore, the study of pneumatic manipulator has important practical value.

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过去一直采用的是手动机械式换档或气动机械式换档。

And the mechanical or pneumatic mechanical gear changing was adopted.

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过去一直采用的是手动机械式换档或气动机械式换档。

And the mechanical or pneumatic mechanical gear changing was adopted.

youdao