| 单词 | 链烯 |
| 释义 | 〔olefin〕Any of a class of unsaturated open-chain hydrocarbons such as ethylene, having the general formula CnH 2 n; an alkene with only one carbon-carbon double bond. 烯烃：任何一类不饱和的开链碳氢化合物，如乙烯，总分子式为CnH 2 n；仅有一个碳—碳双链的链烯 〔alkene〕Any of a series of unsaturated, open chain hydrocarbons with one or more carbon-carbon double bonds, having the general formula CnH 2n. 烯，烯烃，链烯：一系列不饱和的，有两个或两个以上碳碳双链的开链烃，其一般分子式为CnH 2n |
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