But a large proportion of global greenhouse gas emissions are actually other gases, such as N2O (nitrous oxide) and CH4 (methane).
但是，全球温室气体排放实际上有相当一部分是其他气体，如N2O(一氧化二氮)和CH4(甲烷)。
Methane (CH4) is the main constituent of natural gas, and is the result of natural decomposition processes.
甲烷(CH4)是天然气的主要成分，是自然分解过程的产物。
The effect of this steady accumulation of CH4 in the atmosphere will become the focus of more scientific study, and, increasingly, environmental policy debate.
甲烷在大气中不断积聚的这种效应将成为更多科学研究的重点，从而招致越来越多环境政策的争论。
Methane in the atmosphere traps more heat near the earth’s surface, further raising temperatures, leading to more thawing, more decomposition, more CH4, etc. etc. etc.
大气中的甲烷吸附更多接近地球表面的热量，进一步升高温度，导致更多的融化，再分解，产生更多甲烷，等等。 如此往复循环。
It is estimated that some 50 billion tons of CH4 could be trapped in the Siberian Lake permafrost.
据估计，可能约有500亿吨甲烷被困在西伯利亚湖永久冻土中。
Next to CO2, methane (CH4) is the second important contributor to global warming in the atmosphere and global atmospheric CH4 budget depends on both CH4 sources and sinks.
甲烷（CH4）是大气中仅次于CO2对全球变暖贡献第二大的温室气体，全球大气CH4的收支取决于CH4的源与汇。
The treatment of film compost decreased 48.6% of CH4 emission more than applying urea annually.
包膜复合肥处理比施尿素处理年甲烷排放总量减少48.6 %。
Rice plants play a pivotal role in methane emission and more than 90% of CH4 released from a rice field during a growing season can be emitted by rice plant-mediated transport.
水稻植株是稻田甲烷（CH4）排放的重要通道，90%的CH4气体由水稻植株通气组织排放到大气中。
N2O and CH4 are important atmospheric trace gases, which play significant roles in the global warming and atmospheric chemistry.
氧化亚氮、甲烷是大气中重要的微量气体，对全球变暖和大气化学有重要作用。
Under optimum reaction conditions, CH4 conversion of 54.5%, CH3OH yield of 45.5 % were obtained.
在最优反应条件下甲烷的转化率可达54.5%，甲醇收率达45.5%。
The FAD model and the quasi-classical trajectory (QCT) calculations were applied to predict the dissociation probability of CH4+.
在理论方面，我们用场致解离模型及准经典轨线方法计算了甲烷离子的解离几率。
A novel plasma reactor with rotary multi tip electrode and a fixed concentric cylinder electrode has been developed in order to use in CH4 discharge and to produce unsaturated C2 hydrocarbons.
研制了一种新型的带有一个多尖端旋转电极对一个同心圆筒型固定电极的甲烷放电制备碳二烃的等离子体反应器。
The main reason for it is that such glasshouse gases as CO2, CH4 and so on in the atmosphere have become denser than ever because of industrial and agricultural production.
气候变暖的原因主要是工农业生产中产生二氧化碳、甲烷等温室气体导致大气中这些气体浓度的增加。
Experimental research has been completed including LED spectrum characteristics, relationship between transmission light intensity and CH4 density, result analysis and calibration.
进行了光纤甲烷测量系统的实验研究，包括LED光谱特性，透射光强度与甲烷气体浓度的关系以及标定结果等。
This paper reports high-order stimulated Raman Scattering in CH4-pumped by a ruby laser and discusses the generating condition of the high-order anti-Stokes.
报道用红宝石激光泵浦甲烷的高阶受激喇曼散射，并讨论了高阶反斯托克斯光产生的条件。
Photooxidation of CH4 probably was an important source of organic peroxides in the troposphere.
甲烷的光化学氧化可能是大气对流层有机过氧化物的重要来源。
Effects of peak electric voltage and feed flow rates of methane and hydrogen on CH4 conversion, C2 yield, and the selectivity were investigated using copper or stainless steel electrode.
实验采用铜电极和不锈钢电极分别考察了输入电场峰值电压和甲烷、氢气进料流量等参数对甲烷转化率和碳二烃收率、选择性的影响。
A good example of that is CH4, because the CH bond is polar but symmetrically disposed in space.
甲烷就是一个很好的例子，因为极性键是，空间对称的。
These results indicated that the microbial metabolisms, which may include some new metabolic pathway, were active in the s and CH4 cycles in deep sediment of "warm pool".
这些结果表明该海区沉积物中由微生物参与的硫和甲烷循环比较活跃，而且其中可能存在多种新的代谢途径。
The CH4 emission before and after cutting in forest wetlands had minor correlation with the water level.
森林湿地采伐前后的甲烷排放与水位相关性不大。
Since biogas is a mixture of methane (also known as marsh gas or natural gas, CH4) and carbon dioxide it is a renewable fuel produced from waste treatment.
由于沼气是一种混合的甲烷(又称沼气或天然气，甲烷)和二氧化碳知道它是一种可再生的燃料废物处理产生的。
The mutual promotion between carbon dioxide and methane in reforming process should be considered in order to obtain high conversion of CH4 and CO2, and high chemical energy efficiency.
为了得到较高的转化率和化学能效值，应采用甲烷和二氧化碳具有相互促进作用的重整反应过程。
The results of this study may be used to project the effects of future climate change on CH4 emissions from Chinese wetlands.
该结论能够为评估未来气候变化对中国湿地甲烷排放的影响提供依据。
With increase of carbon supersaturation (e. g. CH4 amount in the gas phase) faceted diamonds get less and a high amount of twins and stacking faults are introduced into the deposited diamond.
随着碳的超饱和度(如气相中的甲烷含量)的增大，多面金刚石减少，大量的孪晶和堆垛层错进入沉积的金刚石中。
With increase of carbon supersaturation (e. g. CH4 amount in the gas phase) faceted diamonds get less and a high amount of twins and stacking faults are introduced into the deposited diamond.
随着碳的超饱和度(如气相中的甲烷含量)的增大，多面金刚石减少，大量的孪晶和堆垛层错进入沉积的金刚石中。
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