排烟口安装时距可燃物或可燃构件的距离不应小于（ ）m。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29272' and id < 2383550 and id<>'2383550' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29272' and id > 2383550 and id<>'2383550' order by id asc limit 5