.当变比不同的两台变压器并联运行时，会产生环流并在两台变压器内产生电压降，使 得两台变压器输出电压(    )。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69521' and id < 4504023 and id<>'4504023' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69521' and id > 4504023 and id<>'4504023' order by id asc limit 5