上层upper layer
右上下导数right-hand upper lower derivative【数】
头upper part of root or rhizome
痰浊上扰phlegm turbidity harassing the upper body
上鞭upper flagellum
痰热上扰phlegm-heat harassing the upper body
食道上端括约肌upper esophageal sphincter
高层大气物理学aeronomy【地物】;upper atmospheric physics【地物】