1. circumscription :The act of circumscribing or the state of being circumscribed. 限制的行为或被限制的状态。
2. On circumscription of the genus Prenanthes L. and Notoseris Shih -- a new genus of Compositae from China. 菊科福王草属的分类界限及中国菊科植物一新属 -- 紫菊属。
3. Results Anterior mediastinal hematoma appears as soft-tissue behind sternum, and has a clarity circumscription with other structures. 结果前纵隔血肿表现为胸骨后软组织密度影,与周围结构界限清楚,心脏大血管受压后移;