upper fin上翅
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 end-shield上半端罩
upper bound theory上限定理
Upper digest tract上消化道
upper closed limit上闭极限
upper wing coverts上覆羽
upper layer stacks上层堆栈
upper anticyclonel高空反气旋
Upper memory blockn.上位内存块
upper idler roller上惰轮辗筒
upper horizon soil上层土