直流电机位置用脉冲宽度调制法控制。
Position control of d. c. motors has been done by means of pulse width modulation .
直流电机位置用脉冲宽度调制法控制。
Position control of d. c. motors has been done by means of pulse width modulation.
直流电机位置用脉冲宽度调制法控制。
Position control of d. c. motors has been done by means of pulse width modulation.
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