methane

Developments in the direct dehydroaromatization of methane are reviewed including the thermodynamics, catalysts and reaction mechanism.

综述了国内外在甲烷直接脱氢芳构化热力学 、 催化剂和反应机理方面的最新近展.

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By analyzing the data, researchers can come to the emission of methane content in sheep number.

通过分析数据, 研究人员便可得出绵羊排出的甲烷含量多少.

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The blast was caused by pockets of methane gas that ignited.

爆炸是由数袋甲烷气体着火引起的.

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Like methane, CO 2 has behaved unexpectedly over the past several thousand years.

二氧化碳与甲烷相同, 在过去数千年也发生了意料之外的变化.

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Methane and propane are alkanes.

甲烷和丙烷是烷烃。

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The images show strong evidence for erosion due to liquid flows, methane.

泰坦的表面充满著液体流动的迹象, 相信是液体甲烷所做成.

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Pictured above is an image of Mars superposed with a map of the recent methane detection.

上图是火星甲烷分布图与火星地图的叠加结果.

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The activation of catalyst combustion methane sensor is the key problem in the sensor's usage.

催化燃烧型甲烷传感器的激活是传感器使用的关键问题.

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Conventional flow mathematical models of coalbed methane are all based on Euclidean geometry.

传统的煤层气渗流数学模型均是建立在欧几里德几何基础上的.

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The research tar surface active spot is studies the tar and the methane action mechanism foundation.

研究煤焦表面的活性位点是研究煤焦与甲烷作用机理的基础.

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Forming methane hydrate a quiescent system a slow and incomplete process.

静态体系生成甲烷水合物是个缓慢的、不完全的过程.

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The raw materials used in the production of perfluoropolyethers are a mineral ( fluorspar ) and methane.

用于生产全氟聚醚的原料为矿物 ( 荧石 ) 和甲烷.

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Can detect hydrogen, oxygen, nitrogen, carbon monoxide, methane, dioxide, ethylene, ethane, acetylene and other gases.

可对氢 、 氧 、 氮 、 一氧化碳 、 甲烷 、 二氧化碳 、 乙烯 、 乙烷 、 乙炔九种气体检测.

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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。

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Methane gas does collect in the mines around here.

周围的矿井里的确有沼气聚积。

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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。

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The formation temperature controls the physiological activity of the microbe and the production of the methane.

分析了地层温度、咸化环境和还原环境等因素对阳信洼陷沙一段生物气生成、聚集和保存的控制作用.

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How many hydrogen atoms are present in 16 grams of methane?

十六克甲烷中有多少氢原子?

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The cloud might be snowing ethane snowflakes into methane lakes below.

云层可能正在向下面的甲烷湖飘落乙烷雪.

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And, when atmospheric methane condenses, it makes fog.

当甲烷大气冷凝时, 就会产生雾.

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The ignition of methane gas killed eight men.

甲烷起火，致使8人丧生。

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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。

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Punctured breathing units spewed methane and blossomed into flame.

被射穿的呼吸器喷发出甲烷爆发成火球.

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Next in line is methane from livestock and manure.

排名第二的是牲畜和粪肥产生的甲烷.

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As the waste materials decompose, they produce methane gas.

废物腐烂时会产生沼气。

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