变压器的变比等于一、二次侧感应电势有效值之比

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68477' and id < 4421357 and id<>'4421357' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68477' and id > 4421357 and id<>'4421357' order by id asc limit 5