ETVn.大众电视教育电视(educational television).ETabbr.东部时间（=Eastern Time)abbr.外星人（=extraterrestrial）ethoxyl group乙氧基Ethylurethane乌拉坦, 氨基甲酸乙酯, 尿烷[助溶剂]ethyl caprate癸酸乙酯ethylediamine乙二胺ethylpyridinen.乙基吡啶ethanoic acid乙酸ethyl hydrate乙醇ethyl-ether乙醚ethmoid spine[医] 筛骨棘ethyl toluate甲苯甲酸乙酯