benzene ring 品中某些含苯圜 ; 苯系烃
orientation on benzene ring 苯环上的定位效应
addition reaction on benzene ring 苯环上的加成反应
electrophilic substitution on benzene ring 苯环上的亲电子取代反应
fused benzene ring 稠苯环
benzene ring factor 苯环因子
benzene ring structure 苯环结构
benzene ring framework 苯环骨架
coordinated benzene ring 配位苯环
Between the benzene ring 在苯环之间的
The benzene ring is also seen in other compounds .
苯环在其他化合物中也可以看见。
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The benzene ring is also seen in other compounds.
The toxicity of chlorobenzene increased with increasing number of chlorine in benzene- ring.
随着苯环上取代氯数目的增加，其毒性也相应增强；
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