upper nut上螺母upperadj.较高的；上面的；上部的n.鞋帮；上铺n.兴奋剂；令人兴奋的经历Upper Rough Linear Subspace上粗线性子空间upper and lower tree limits林限Upper alveolar ridge mucosa上牙槽嵴粘膜upper critical cooling rate上部临界冷却速率,上部临界冷却速度upper air wind measurements高空风探测upper course of Fenhe River汾河上游Upper eyelid blepharoplasty重睑成形Upper urinary tract calculi上尿路结石upper operating temperature[电] 最大运作温度Upper plenum for air return上夹层