恒重指供试品连续两次干燥或炽灼后的重 量差异

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29782' and id < 2418344 and id<>'2418344' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29782' and id > 2418344 and id<>'2418344' order by id asc limit 5