鼠笼式电动机不能采用（）的调速方法进行调速。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32657' and id < 2596628 and id<>'2596628' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32657' and id > 2596628 and id<>'2596628' order by id asc limit 5