benzene e ring苯环
Between the benzene ring在苯环之间的
benzene ring factor苯环因子
coordinated benzene ring配位苯环
orientation on benzene ring苯环上的定位效应
benzene ring substitution group苯环取代基
benzene ring structure苯环结构
hydrogenation of benzene ring苯环加氢
benzene ring framework苯环骨架
N（名词） the hexagonal ring of bonded carbon atoms in the benzene molecule or its derivatives 苯环 (Also called benzene nucleus) → see also Kekulé formula