| 单词 | 碳氢 |
| 释义 | 〔methylene〕A bivalent hydrocarbon radical, CH2-, a component of unsaturated hydrocarbons. 甲叉，亚甲：一种双价碳氢基，CH2-，不饱合碳氢化合物的一个组成部分 〔smog〕A form of air pollution produced when sunlight causes hydrocarbons and nitrogen oxides from automotive emissions to combine in a photochemical reaction.烟雾污染：一种空气污染，由交通工具排放的碳氢和氮氧化合物在阳光的照射下，发生光化学反应而产生〔nitroparaffin〕Any of a group of organic compounds formed by replacing one or more of the hydrogen atoms of a paraffin hydrocarbon with the univalent group, NO2, as in nitromethane, CH 3NO 2. 硝基烷：一组有机化合物，其由用一价根NO2代替碳氢链烷烃中的一个或多个氢原子而产生，如在硝基甲烷中，CH 3NO 2 〔choline〕A natural amine, C5H 15NO 2, often classed in the vitamin B complex and a constituent of many other biologically important molecules, such as acetylcholine and lecithin. 胆碱：一种天然的碳氢基氨，C5H 15NO 2，经常归类为维生素B复合体并且是许多其他生物重要分子的组成部分，如乙醯胆素和卵磷脂 〔methyl〕The univalent hydrocarbon radical, CH3-, derived from methane and occurring in many important organic compounds. 甲基：单价碳氢基，CH3-，由甲烷中衍生出，在许多重要有机化合物中出现 〔benzine〕A colorless, flammable, liquid mixture of hydrocarbons obtained in distilling petroleum, used in cleaning and dyeing and as a motor fuel.轻油精，石油醚：一种无色、易燃的碳氢液体混合物，从石油蒸馏而得，用在清洗和染色中并用作发动机燃料 |
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