球形容器球瓣形式中，采用（ ）球瓣，焊缝长度最短。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24905' and id < 2124983 and id<>'2124983' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24905' and id > 2124983 and id<>'2124983' order by id asc limit 5