内弹性膜

internal conflict

internal environment (enviromment ) environment (enviromment )

internal lining

conjoint drive for lift valves and drives for internal-combustion engines

Ligation of internal maxillary artery

internal-external upset drill pipe【油气】

arteria carotis interna【解剖】;internal carotid【解剖】;internal carotid artery【解剖】

internal acromial bursa