isoln.孤点元ISOabbr.国际标准化组织(=International Standards Organization)isotense乙酯利血平, 昔可平Isopyrumn.扁果草属isostathn.等密度线isocrymen.最冷期等水温线Isohella伊索海拉isologicadj.对望的Isospora[医] 等孢子球虫属isohyets等雨量线isobutyln.[化]异丁基isotomic等截的