根据螺纹导程，电力控制，主轴旋转和进给运动都是同步的。

With the synchronous spindle the spindle rotation and the feed motion are synchronized by an electronic regulation according to the lead of thread.

youdao

配有冷却液，主轴功率进给系统。

Equipped with coolant, spindle power feed system.

youdao

存在一个较佳的主轴伺服进给速度使得工件的加工速度较高。

There is an optimal spindle servo feeding speed(SFS) at which the MRR is the highest.

youdao