upper surface aileron [航空、航天科學(xué)技術(shù)]上翼面副翼upper surface 上表面upper styria upper stream of beiluohe river [環(huán)境科學(xué)技術(shù)]北洛河上游upper stream 上游upper storey 上層upper steam extraction pipe [土木建筑工程]上部抽汽管upper spring at the bend [醫(yī)藥科學(xué)]上曲泉upper specification limit 規(guī)格上限upper side 上面；上盤upper semisphere [數(shù)學(xué)]上半球upper right corner 右上角upper right 右上方/角upper ridge of the leg [醫(yī)藥科學(xué)]足之上廉upper respiratory tract obstruction [醫(yī)藥科學(xué)]上呼吸道阻塞upper respiratory tract mucus [醫(yī)藥科學(xué)]上呼吸道粘液upper respiratory tract infection 上呼吸道感染upper respiratory tract 上呼吸道upper respiratory infection upper reaches 上游，上游河段