同步电机空载运行是指有(  )输出。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69514' and id < 4503401 and id<>'4503401' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69514' and id > 4503401 and id<>'4503401' order by id asc limit 5