容器或设备标准化的主要参数是公称直径和公称压力。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24904' and id < 2124962 and id<>'2124962' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24904' and id > 2124962 and id<>'2124962' order by id asc limit 5