当外压力小于等于临界外压力时，外压圆筒不会失稳。 （ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24905' and id < 2125005 and id<>'2125005' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24905' and id > 2125005 and id<>'2125005' order by id asc limit 5