当绕线式异步电动机的电源频率和端电压不变，仅在转子回路中串入电阻时，最大转矩Tm和临界转差率Sm将（   ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69445' and id < 4497247 and id<>'4497247' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69445' and id > 4497247 and id<>'4497247' order by id asc limit 5