改变定子端电压调速
Speed regulation by changing the terminal voltage of the stator
以上为机器翻译结果，长、整句建议使用 人工翻译 。
电动机调端电压调速是通过改变电动机定子端电压来实现调速的方法。
Energy saving of a water injection system can be achieved by regulating the speed of the electromotor through changing the input voltage of the motor's stator.
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