ETG视丘电图ETabbr.东部时间（=Eastern Time)abbr.外星人（=extraterrestrial）ethamoxytriphetol[化] 乙胺氧三苯醇ethylenic linkage烯键ethyl oxide ester缩水甘油醚ethyl-mercaptan乙硫醇ethyl-formamide乙替甲酰胺ethyl hexyl ether乙基 己基醚ethyl vinyl ether乙基乙烯基醚ethyl allyl ether乙基烯丙基醚ettdngite crystal钙矾石晶体ethenyl estradiol乙烯基雌二醇