锯链的驱动张力是驱动力与切削阻力及摩擦阻力相对抗而产生的，在不同位置其大小不等。

Drive tension is caused by resistance of driving force and cutting resistance and frictional resistance and it is not the same value at different places.

youdao

可转位加工工具（切削） 、圆棒、环刀、圆盘形锯、钻孔工具、车刀、导向槽、刀片。

Rotating machining tools ( cutting ), round rods, circular knives circular saws, countersinking tools, turning tips, guide gibs, knive blades.

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