The frequency control of motor speed is used for alternating current motor of main winch on No1 BF charging system, so that it is possible to carry out control of skip moving speed.

安钢1号高炉主卷扬交流电机采用变频调速技术，实现料车运行调速控制。变频器运行一年多来，未发生过一次故障。

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The secondary air booster is an air compressor which adopts a direct current motor as the power.

二级空气增压器为采用直流电机为动力的空气压缩机。

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It provides a method for the untouched switch Control for three - phase alternating current motor.

为大功率三相交流电机的无触点控制提供一种方法。

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Current Motor is based in Ann Arbor, Michigan, and uses IT in a number of interesting ways.

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He, too, however, has a long to-do list before the motor embarks on a maiden voyage: His current motor has a tether attached for power.

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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.

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