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他励直流电动机的人为特性与固有特性相比,其理想空载转速和斜率均发生了变化,那么这条人为特性一定是( )。
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他励直流电动机的人为特性与固有特性相比,其理想空载转速和斜率均发生了变化,那么这条人为特性一定是( )。
A、串电阻的人为特性
B、弱磁的人为特性
C、降压的人为特性
D、以上都不正确
时间:2021-09-01 17:03
关键词:
青书学堂
平顶山学院
电气工程及其自动化
电机与拖动
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B
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