激光加工机床工作时，操作者必须佩戴防护眼镜。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30405' and id < 2458015 and id<>'2458015' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30405' and id > 2458015 and id<>'2458015' order by id asc limit 5