.对于一个三相电动机,绕组连成星行接于UL=380V的三相电源上,与绕组连成三角形接于UL=220V的三相电源上,这两种情况下,从电源输出功率相等。( )
发布时间:2025-12-10
A.正确
B.错误
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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69441' and id < 4497047 and id<>'4497047' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69441' and id > 4497047 and id<>'4497047' order by id asc limit 5
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