某地下水泵接合器设置在地下阀门井里，其井盖的直径不应大于（ ）m。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='23356' and id < 2038425 and id<>'2038425' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='23356' and id > 2038425 and id<>'2038425' order by id asc limit 5