当润滑部位的间隙较大时应选用（ ）的润滑油。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24898' and id < 2124647 and id<>'2124647' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24898' and id > 2124647 and id<>'2124647' order by id asc limit 5