脑室外引流（法）

external diameter

dorsal nasal artery, external nasal artery; 又称“鼻外动脉”。

external cylindrical centerless grinding machine【机】

external auditory

cover for reexport and external transactions【贸易】 保险

blood ejection and spontaneous external bleeding

Yangke Xinde Ji; Experience Gained in Treating External Diseases

external carotid angiography