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【单选题】
如果有一台三相异步电动机运行在转差率为s=0.25.此时通过气隙传递的功率有A.
25%的转子铜耗
B.
75%是转子钢耗
C.
75%是输出消耗
D.
75%是电磁功率
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【单选题】Why does she cut her hair short and almost only wears uniform?
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