At the same time, this system feedback no longer is enterprise process capability in traditional six Sigma level, but is that Sigma which this enterprise produces most tallies the level.

同时，该系统的反馈不再是传统的六西格玛条件下企业的工序能力指数，而是该企业生产最符合的那个西格玛水平。

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Another kind of the voltage control mode, through the high and low voltage on motor speed control, motor feedback signal through the drive to the numerical control system feedback position control.

另一种采用电压控制方式，通过电压的高低进行电机的转速控制，电机的反馈信号通过驱动器反馈到数控系统进行位置控制。

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youdao

So that's a negative feedback control system.

这就是负反馈控制系统得名的原因

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