局部放电测量可有效发现大容量变压器绕组的集中性缺陷。（ ）（0.5）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69421' and id < 4494952 and id<>'4494952' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69421' and id > 4494952 and id<>'4494952' order by id asc limit 5