Isogo五十子(姓,日本)ISOabbr.国际标准化组织(=International Standards Organization)Isodose-effect Ratio等剂量-效应比率isomorphic replacement同晶置换isobutyl phenyl ketone异丁基苯基酮iso-butyryl chloride异丁酰氯isotopic geochronology同位素地质年代学isokinetic contraction等动收缩isosuccinyl coenzyme A异琥珀酰辅酶AIsometric type surface等距型面isotopic spin impurity同位旋不纯isotopic fractionation同位素分馏,同位素分级