To fix a coil of excitation on the stator of alternating current permanent magnetic motor made up a kind of hybrid excitation motor.

交流永磁电机在定子中加入励磁线圈，构成一种可调磁场的混合励磁电机。

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Of, relating to, or using an intermittent asymmetrical alternating electric current produced by an induction coil.

交变电压的改变与初级线圈及其次级线圈的匝数成正比。

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The method includes the following steps: exerting alternating current on the coil to generate an alternating magnetic field;

该方法包括 对线圈施加交流电以产生交变磁场；

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With more than 700 patents to his name, Tesla invented radio, the coil transformer, wireless communication, fluorescent lights and the alternating-current motor, which allowed electricity to flow over long distances.

FORBES: Pioneers Die Broke