切削性操作 有錾削、锯削、锉削、攻螺纹、套螺纹。

Chisel cutting operation of cut, cut cut, cut file, attack thread, the thread sets.

youdao

切削性操作 有錾削、锯削、锉削、攻螺纹、套螺纹。

Chisel cutting operation of cut, cut cut, cut file, attack thread, the thread sets.

youdao