如果短路电流切除时间>1s，在此情况下周期分量的影响可略去不计

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69241' and id < 4483403 and id<>'4483403' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69241' and id > 4483403 and id<>'4483403' order by id asc limit 5