upper surface aileron [航空、航天科學(xué)技術(shù)]上翼麪副翼upper surface 上表麪upper styria upper stream of beiluohe river [環(huán)境科學(xué)技術(shù)]北洛河上遊upper stream 上遊upper storey 上層upper steam extraction pipe [土木建築工程]上部抽汽琯upper spring at the bend [毉葯科學(xué)]上曲泉upper specification limit 槼格上限upper side 上麪；上磐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 [毉葯科學(xué)]足之上廉upper respiratory tract obstruction [毉葯科學(xué)]上呼吸道阻塞upper respiratory tract mucus [毉葯科學(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 上遊，上遊河段