UPEn.单总线奇偶错upadv.向上；起来；上升；往上prep.向上adj.向上的；上行的n.上升v.上升；增加updating- file list升级文件列表Up Close and Personal舍不得你upconversion emission上转换发光upwind finite element迎风有限元up-down steel angle上下角钢up hill and down dale翻山越谷,到处upflow blanket filter厌氧复合床（UBF）up-and-a-downern.骚动；骚乱up parallel operation平行噪作Up or Down arrow keys向上或向下箭头键