dorsal margin

• 背侧缘

dorsal margin的用法和样例：

例句

1. The lateral nasal and columellar arteries then meet over the dorsal region, forming an alar arcade that runs along the cephalic margin of the lateral crura.
   侧鼻动脉和鼻小柱动脉在鼻背区域汇合，形成沿外侧脚头侧缘走行的鼻翼弓。