on.abbr.=octane number 【化】辛烷值onprep.在 ... 之上；由 ... 支撑着；在（某一天）；关于；基于adv.穿着；向前（移动)；表示持续性adj.表示已连接、处于工作状态或使用中；发生；值班On Administrative Entrustment论行政委托on conviction upon indictment循公诉程序定罪on this and like occasions.这种和类似情况下On Exploration of Dart Design颡缝设计形式的探讨On Science and Social Welfare论科学和社会福利On the Modernity of Decadence试论颓废的现代性On the internet game language网络游戏语言初探On Mark Twain's Short Storieson-line delayed time system联机延时系统on Condition Maintenance Team视情保养组