三相异步电动机空载时气隙磁通的大小主要取决于（）

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='32657' and id < 2596570 and id<>'2596570' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32657' and id > 2596570 and id<>'2596570' order by id asc limit 5