It's based on the combination of software and hardware that motion control realizes the good precision of position control and speed control in machine motion.

运动控制是通过软硬件的方法来实现机械运动精确的位置控制、速度控制和加速度控制等。

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This can even be produced by small workshops, by certain milling technique with steps of " lining" , manually feeding subjecting to lines according to milling machine motion .

采用“划线、手动看线走刀配合机床进给”的铣削加工工艺使得小工厂亦能加工出这种产品。

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He pulled the lever and set the machine in motion.

他扳动操纵杆，启动了机器。

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That would that would give rise to a perpetual motion machine, breaking of the second law. It can't happen.

否则就会使,得永动机出现，打破第二定律那是不可能的。

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