变压器局部放电试验可检出变压器（ ）各环节是否存在缺陷。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32604' and id < 2592572 and id<>'2592572' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32604' and id > 2592572 and id<>'2592572' order by id asc limit 5