使用砂轮打磨工件时，操作者应戴防护眼镜，避免铁屑飞人眼睛。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30406' and id < 2458111 and id<>'2458111' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30406' and id > 2458111 and id<>'2458111' order by id asc limit 5