设计V带传动时，为防止（ ），应限制小带轮的最小直径。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24896' and id < 2124566 and id<>'2124566' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24896' and id > 2124566 and id<>'2124566' order by id asc limit 5