?整流电动势

commutating electromotive force(电机)整流电动势 Working parameters of electric motor on beamm pumping units;游梁抽油机电动机工作参数的研究 ..

?换向电动势

... commutating device 换向装置，整流装置 commutating electromotive force 换向电动势，整流电动势 commutating field 换向场，附加极磁场 ...