As a kind of general driver machine, gear has its special method of designing and manufacturing.

齿轮作为一种通用的传动机构，有其特殊的设计和加工方法。

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As a kind of general driver machine, gear has its special method of designing and manufacturing.

齿轮作为一种通用的传动机构，有其特殊的设计和加工方法。

youdao