emergent 专八

Early recognition of pneumopericardium is important, because emergent pericardiocentesis may be required if there is clinical evidence of cardiac tamponade.

发生气心症时必须尽早诊断，如果发生心填塞，必须紧急实施心刺。

Trees of the family Dipterocarpaceae dominate the canopy and emergent layers of the hyper-diverse, aseasonal, humid lowland tropical forests of Southeast Asia.

以龙脑香科植物为主的东南亚热带雨林有一非常特别的现象，那就是不定期的大开花现象。