upwardsadv.往上；向上地；以上upwardadj.向上的；上升的adv.向上；上升upward-closed set向上封闭集合upward transmission上行传输upward multiplexing向上多路转接Upward gaze of eyes眼上注视upward acting plate上压板upward-compatiblen.向上兼容upwardly skip-free非朝上跳跃upwards curve method飞升曲线法upward compatibility向上互换性,向上相容性,向上兼容性upward vertical hole倒垂孔