自断路器的机构接到合闸指令起，到各相触头均接触时为止的一段时间，称为断路器的 (   )

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69437' and id < 4496811 and id<>'4496811' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69437' and id > 4496811 and id<>'4496811' order by id asc limit 5