It was applied to speed control ind-c motor and obvious effect has been found.
该方法已应用到直流电动机的调速上，并取得了满意的效果。
The test results show that commutation performance of the D. C. motor is better.
试验结果表明这种直流电动机的换向性能是较好的。
The test results show that commutation performance of the D. C. motor is better.
试验结果表明这种直流电动机的换向性能是较好的。
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