物料提升机应有完好的停层装置，各层联络要有明确（）标记。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25762' and id < 2165898 and id<>'2165898' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25762' and id > 2165898 and id<>'2165898' order by id asc limit 5