“speed control technology of DC electric drive”的概念、定义、翻译、参考文献-科学参考

单词	speed control technology of DC electric drive
释义	speed control technology of DC electric drive Encyclopedia 工学电力拖动速度调节释 speed control technology of DC electric drive直流电力拖动调速技术通过改变电气参数，使直流电动机在不同转速下运行的技术。简称直流调速。
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