Isorna伊索尔纳ISOabbr.国际标准化组织(=International Standards Organization)isonicotinic hydrazide acid[医] 异烟肼, 异烟酸酰肼isopropyl mercuric chloride异丙基氯化汞isoamylethylbarbituric acid异戊基乙基巴比妥酸isohyperthermic environment体内水分平衡isothermal adsorption curve等温吸附曲线isothermal thermogravimetry等温热重isothermal microcalorimetry恒温微量热isocentric somersault chair等中心旋转椅Isoflavones/pharmacology异黄酮类／药理学isoparametric finite element等参有限元