容器的公称直径是指容器（ ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='24904' and id < 2124955 and id<>'2124955' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24904' and id > 2124955 and id<>'2124955' order by id asc limit 5