Etur埃图尔ETabbr.东部时间（=Eastern Time)abbr.外星人（=extraterrestrial）ethylenhydrin-sulfonic acid[医] 羟乙基磺酸ethyl sodio acetoacetic ester乙基钠代乙酰乙酸酯ethyl mercuric thiosalicylate乙基汞硫代水杨酸ETD Expected Time of Delivery预计发送日期Ethyimalonic-abipic aciduria乙基丙二酸-脂肪酸尿症ethyl stearic acyloxy silicate酰基硅酸乙酯ethmoid bone and tooth remover筛骨和猪牙剔除器ethylalumlinium sesquichloride乙基三氯化二铝ethyl phenyl carbinyl butyrate丁酸乙基苯基甲酯ethods for nonprotein nitrogen[医] 非蛋白氮测定法