CHEN He-qua. Basic Methods of Frequency-conversion Speed-regulatio[J]. Journal of Mine Automation, 2010, 36(2): 122-125.
Citation: CHEN He-qua. Basic Methods of Frequency-conversion Speed-regulatio[J]. Journal of Mine Automation, 2010, 36(2): 122-125.

Basic Methods of Frequency-conversion Speed-regulatio

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