用塞尺测量两个对接法兰的端面间隙是为了检查两个法兰端面的（ ）偏差。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24907' and id < 2125061 and id<>'2125061' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24907' and id > 2125061 and id<>'2125061' order by id asc limit 5