ETIM东突分子ETabbr.东部时间（=Eastern Time)abbr.外星人（=extraterrestrial）Ethyl mercuric urea乙汞脲etiologic diagnosis病因诊断ethnolinguistic map种族语言分布图ethoxy-phenylurea乙氧基苯脲ethoxyl succinimide羟乙基琥珀酰亚胺etilefrine pivalate依替福林特戊酸酯(治偏头痛)ethoxyabietic amine乙氧基松香胺ethyl acetopyruvate[化] 乙酰丙酮酸乙酯ethoxyethyl acetate[化] 乙酸乙氧乙酯eTRACKING technique血管回声跟踪技术