我国标准规定加速器等中心指示的检定周期为

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29523' and id < 2401432 and id<>'2401432' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29523' and id > 2401432 and id<>'2401432' order by id asc limit 5