To transmit motion smoothly, the contacting surfaces of gear teeth must be carefully shaped to a specific profile.

为了平顺地传递运动，齿轮齿的接触面必须精加工成特殊齿廓。

youdao

To transmit motion smoothly, the contacting surfaces of gear teeth must be carefully shaped to a specific profile.

为了平顺地传递运动，齿轮齿的接触面必须精加工成特殊齿廓。

youdao