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汉语拼音：běn huán

苯分子所具有的结构。为平面的正六边形，每个键角均为120°，碳碳间的键长均为140×10-10米。碳碳间的键为介于单键和双键间的独特键。芳香族化合物中一般均含有一至多个苯环。

• Hydrocarbon derivative containing an --OH group attached to a carbon atom not in an aromatic ring.

  含有烃类衍生物-羟基相连的碳原子在一个苯环不组。

• The intermediary products are ester with a benzene circle, linear acid, alcohol, ester, e. . .

  中间产物包括多种含一个苯环的酯和直链的酸、醇、酯等。

• This paperindicated that it was good for condensation reaction when benzene-ring bearing electron-attaching groups.

  研究发现：苯环上有吸电子基团时对缩合反应有利；

• METHODS Target compound was synthesized by steps of benzyl protection, carbonyl reduction, deprotection and benzene reduction.

  方法以邻苯二甲酰亚胺为原料，经过苄基保护、羰基还原、脱保护和苯环还原四步反应合成目标产物。

• The aromatic hydrocarbon structures in kerogen carry free electrons stabilised by the resonating bonds of benzene rings .

  油母质中的芳香烃结构含有被苯环共振键稳定的自由电子。

• The benzene ring of both resins is glowing into benzene fused ring structure with the carbonization temperature increasing.

  两种树脂中的苯环结构均随着碳化处理温度的升高逐渐形成多苯稠环结构。

• Membrane filtration technology emerged difficult to deal with some materials containing benzene ring in the printing and dyeing wastewater.

  针对膜过滤技术对印染废水中一些含苯环物质难以处理的问题，提出了利用碳纳米管制备新膜材料的方法。

• The cationic reaction of an epoxy ring with hydroxyls on the cellulose in wood can increase a hybrid UV system's adhesion.

  阳离子使环氧树脂的苯环与木制纤维素的羟基反应可以增强UV混合体系的附着力。

• Under the same concentrations, the toxicity increased with the number of hydrogen atoms substituted by chlorine atoms in benzene ring.

  在浓度相同时，除六氯代苯外毒性随苯环上氢原子被氯取代个数的增加而加大。