| 单词 | 甲烷 |
| 释义 | 〔biogas〕A mixture of methane and carbon dioxide produced by bacterial degradation of organic matter and used as a fuel.生物气：有机物质经细菌降解而产生的甲烷与二氧化碳混合物，用作燃料〔firedamp〕The explosive mixture of firedamp and air.甲烷和空气的爆炸混合物〔methane〕An odorless, colorless, flammable gas, CH4, the major constituent of natural gas, that is used as a fuel and is an important source of hydrogen and a wide variety of organic compounds. 甲烷：一种无味，无色，易燃汽体，CH4，是天然气的主要组成部分，被用作燃料，是氢和其它多种有机化合物的重要来源 〔comet〕A celestial body, observed only in that part of its orbit that is relatively close to the sun, having a head consisting of a solid nucleus surrounded by a nebulous coma up to 2.4 million kilometers (1.5 million miles) in diameter and an elongated, curved vapor tail arising from the coma when sufficiently close to the sun. Comets are thought to consist chiefly of ammonia, methane, carbon dioxide, and water.彗星：一种天体，仅能在它比较接近于太阳的那一部分轨道才能看到，有一个包括固体核、由直径达到两千四百万公里（一千五百万英里）的星云状的彗发围绕的头部 ，当足够接近太阳时一个拉长的曲线气尾从彗发升起。人们认为彗星主要有氨、甲烷、二氧化碳和水构成〔firedamp〕A combustible gas, chiefly methane, occurring naturally in mines from the decomposition of coal.沼气：一种在矿坑里由煤腐烂而自然产生的可燃气体，主要成分是甲烷〔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 〔trihalomethane〕A chemical compound containing three halogen atoms substituted for the three hydrogen atoms normally present in a methane molecule. It can occur in chlorinated water as a result of reaction between organic materials in the water and chlorine added as a disinfectant.三卤甲烷：含三个卤原子的化合物，这三个卤原子替代了正常存在于甲烷分子中的三个氢原子。水中有机物质与用作消毒剂加入的氯两者间的反应结果可令其出现于加氯消过毒的水中〔react〕Methane reacts with hydroxyl to produce formaldehyde.甲烷与羟基反应生成甲醛〔hydrocarbon〕Any of numerous organic compounds, such as benzene and methane, that contain only carbon and hydrogen.碳氢化合物：只含有碳和氢的多种有机化合物的一种，如苯和甲烷〔denature〕To render unfit to eat or drink without destroying usefulness in other applications, especially to add methanol to (ethyl alcohol).使变性：使食物和饮料变质而不破坏这些物质用于其它目的的用途，尤指（在乙醇中）加甲烷 |
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