查询词典 methane

Under the right circumstances methane can play a key role in "prebiotic" chemistry the reactions considered necessary to form carbon-based life.

在适当环境中，甲烷可以在&生命起源前&的反应中扮演关键角色，人们认为，此类化学反应是形成碳基生命的必要步骤。

In 1L semi-continuous tank reactor,researches the effects of sodium dodecylsulfate,potassium oxalate,mixture of sodium dodecylsulfate and potassium oxalate on formation process of methane hydrate .

在1L的半连续搅拌槽式反应器中，研究了添加剂十二烷基硫酸钠、草酸钾和草酸钾与十二烷基硫酸钠复合对甲烷水合物生成过程的影响。

The scattering of phonons as main factors influencing the thermal conductivity were analyzed theoretically. The effects of methane concentration and the structure of diamond films were studied.

首先，我们分析了声子的散射是造成金刚石膜热导率降低的主要因素，研究了在不同的制备方法下碳源气体和金刚石结构对其热导率的影响。

This stoichiometric mixture represents the precise amount of air needed to completely burn one mole of methane. If more air is supplied than required for stoichiometric combustion, the mixture is termed lean and oxidising.

这个最佳混合比率表征了1摩尔甲烷充分完全燃烧需要的空气量，如果进入的空气量超过所需空气，称为稀薄燃烧。

The used ionic liquids can be regenerated by rotary evaporation or re-extraction using tetrachloro-methane.

BPyBF4对模型化合物单程脱硫率达到45.5%，可以有效地脱除汽油中的含硫化合物，使用过的离子液体可以通过真空加热或用四氯化碳反萃取再生。

The kinetics model was gotten based on the alkyl mechanism, light olefins re-absorption and re-reaction. The kinetics experiment is carried out over the selected Fe-Mn-K catalyst, and the kinetics model parameters is got base on the kinetics experiment data. The parameters explain the reaction results that the carbon monoxide content is high, the methane content is the biggest of the hydrocarbon products and the olefin content is bigger than the corresponding alkenes content.

本文同时对该反应的反应机理和动力学进行了研究，以烷基机理为基础，建立了考虑烯烃再吸附和二次反应的动力学模型，并在选定的催化剂上进行了相应的动力学实验，结合动力学实验数据计算得到了相应的动力学模型参数，模型参数值解释了反应产物中CO的含量较高，以及烃类产物中CH4含量最高和烯烃含量大于相应的烷烃含量。

This is the first time to get a well-resolved vibrational spectrum in the VUV/XUVregion of methane.

在CH4的三次谐波光谱中我们观察到了分子激发态的振动结构，这是第次在CH4分子的VUV/XUV波段获得高分辨的振动光谱。

The electron-drift velocity was measured as the function of the reduced electric field for 8 different ratios of argon-methane mixtures.

测量了电子在8种混合比例的Ar+CH4气体中漂移速率随约化场强的变化曲线。

In the process, we are once again adding to the threat of global warming, be-cause methane has been one of the fastest-growing green-house gases, and is third only to carbon dioxide and water vapor in total volume, changing the chemistry of the upper atmosphere.

我们的这种行为更进一步地增加了地球变暖的危险，因为甲烷是一种形成速度极快韵温室效应气体，它在大气中的总含量仅次于二氧化碳和水蒸气，使高空大气层的化学成分都发生了变化。

Methane is a characteristic gas dissolved in transformer oil, which can be used in the early transformer fault diagnosis.

甲烷(CH4)是变压器油中溶解的一种可用于变压器早期故障诊断的特征气体。

What are your goals and strategies for growth?

你的成长目标和策略是什么？

And unto the angel of the church in Sardis write; These things saith he that hath the seven irits of God, and the seven star I know thy works, that thou hast a name that thou livest, and art dead.

3：1 你要写信给撒狄教会的使者，说，那有神的七灵和七星的，说，我知道你的行为，按名你是活的，其实是死的。