对于大容量的变压器通常采用（        ）连接

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68477' and id < 4421306 and id<>'4421306' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68477' and id > 4421306 and id<>'4421306' order by id asc limit 5