Isonn.艾森ISOabbr.国际标准化组织(=International Standards Organization)isopentanen.异戊烷isospondyl等椎鱼isovaleral异戊醛isocheimaladj.冬季等温线的isoclasite水磷钙石isodoublet同位旋双重态, 电荷双重态isolantiten.艾苏兰太特isocholine异胆碱isochimene等冬温线Isoxazoles异嗯唑