| 单词 | 甲烷 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔DECAY〕As household refuse decomposes, it produces an explosive gas, methane. 家庭垃圾腐烂后会释出一种爆炸性气体—甲烷。朗文写作活用〔after〕Methane is often regarded as the second most important greenhouse gas after carbon dioxide.甲烷常被认为是仅次于二氧化碳的重要温室气体。柯林斯高阶〔alkane〕Alkanes, such as butane and methane, are very flammable.丁烷，甲烷等烷烃均为易燃物品。剑桥高阶〔alkane〕Methane and propane are alkanes.甲烷和丙烷是链烷。牛津高阶〔atom〕A methane molecule is composed of one carbon atom attached to four hydrogens.甲烷分子由1个碳原子与4个氢原子构成。柯林斯高阶〔atom〕A methane molecule is composed of one carbon atom attached to four hydrogens.1个甲烷分子由1个碳原子与4个氢原子构成。外研社新世纪〔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，用作燃料美国传统〔bond〕In each methane molecule there are four CH bonds.每一个甲烷分子中有四个碳氢键。朗文当代〔coal〕There are substantial reserves of methane gas trapped in coal seams in the area.该地区煤层之中储有大量的甲烷气体。牛津搭配〔collect〕Methane gas does collect in the mines around here.甲烷气体在这里的矿井中积聚。外研社新世纪〔decompose〕Microbes decompose organic waste into a mixture of methane and carbon dioxide.微生物把有机废物分解为一种甲烷和二氧化碳的混合物。剑桥高阶〔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）加甲烷美国传统〔explosion〕An explosion of methane gas demolished a pensioner's house on Saturday.周六的甲烷爆炸炸毁了一名养老金领取者的住宅。麦克米伦高阶〔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，主要成分是甲烷美国传统〔firedamp〕The explosive mixture of firedamp and air.甲烷和空气的爆炸混合物美国传统〔give〕When they die, plants give off gases such as carbon dioxide and methane.植物死亡的时候会散发出二氧化碳和甲烷等气体。麦克米伦高阶〔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，如苯和甲烷美国传统〔ignite〕The blasts were caused by methane gas that ignited.爆炸是甲烷着火引起的。外研社新世纪〔ignite〕The blasts were caused by pockets of methane gas that ignited.爆炸是由甲烷气囊被引燃造成的。柯林斯高阶〔ignition〕The ignition of methane gas killed eight men.甲烷起火，致使 8 人丧生。柯林斯高阶〔methane〕Methane is one of the principal gases contributing to the greenhouse effect.甲烷是造成温室效应的主要气体之一。朗文当代〔methane〕Methane is the main constituent of natural gas.甲烷是天然气的主要成分。剑桥高阶〔react〕Methane reacts with hydroxyl to produce formaldehyde.甲烷与羟基反应生成甲醛美国传统A major contributor to the destruction of the ozone layer is the methane produced by cows.一个破坏臭氧层的主要因素是牛制造的甲烷。剑桥国际Marsh gas consists mainly of methane.沼气主要由甲烷构成。剑桥国际Natural gas is composed of methane, ethane, propane and butane.天然气由甲烷、乙烷、丙烷和丁烷组成。剑桥国际 |
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