钻削工件过程中，如果钻头上缠有铁屑，应如何应对？（ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30404' and id < 2457966 and id<>'2457966' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30404' and id > 2457966 and id<>'2457966' order by id asc limit 5