ETX=End-of-Text 电文终了记号ETabbr.东部时间（=Eastern Time)abbr.外星人（=extraterrestrial）ethnohistoryn.人种史学Ethnie trade民族贸易ethoxyphenyln.乙氧苯基ethyl citral乙基柠檬醛ethymemazine乙基异丁嗪(抗组胺药, 安定药)ethyl ketene乙基乙烯酮etiladrianol乙苯福林ethylbenzenen.乙基代苯(苯乙烷)eticyclidine乙环利定ethylaniline[化] 乙基苯胺