异步电动机的启动转矩倍数通常指（  ）与额定转矩的比值？（0.5）

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69423' and id < 4495232 and id<>'4495232' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69423' and id > 4495232 and id<>'4495232' order by id asc limit 5