定时限过电流保护远后备灵敏系数计算为（   ）。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69376' and id < 4491266 and id<>'4491266' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69376' and id > 4491266 and id<>'4491266' order by id asc limit 5