A.49.7B.30.0C.45.3D.60.8
A.電刷數(shù)=電機(jī)極對(duì)數(shù)B.支路數(shù)=電刷數(shù)=電機(jī)極數(shù)C.支路對(duì)數(shù)=電刷數(shù)=電機(jī)極數(shù)D.支路對(duì)數(shù)=電機(jī)極對(duì)數(shù)