零件间处于干摩擦时，零件摩擦表面间的润滑状况是只有一层很薄的润滑剂。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='24897' and id < 2124631 and id<>'2124631' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='24897' and id > 2124631 and id<>'2124631' order by id asc limit 5