upper bar高杠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 limb amputation上肢截肢upper-bound theorem上限法upper semi - sphere上半球upper brachial plexus臂丛上干upper arc of vertebra上弓Upper column pressure上塔压力Upper Urinary disease上尿路疾病upper Devonian series上泥盆统upper reflector sight上反射瞄准镜upper bound of symbol上界符号