对于采用润滑脂润滑的滚动轴承，每隔（ ）对轴承部件彻底清洗一次，并重新充填润滑脂。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24899' and id < 2124687 and id<>'2124687' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24899' and id > 2124687 and id<>'2124687' order by id asc limit 5