系统零序电流的分布与电源点的分布有关，与中性点接地的多少及位置无关。()

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69548' and id < 4507095 and id<>'4507095' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69548' and id > 4507095 and id<>'4507095' order by id asc limit 5