检查电动机绕组是否有接地现象，应用钳流表进行。                   

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68478' and id < 4421458 and id<>'4421458' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68478' and id > 4421458 and id<>'4421458' order by id asc limit 5