甲烷

Taking the eastern sag of the Liaohe basin where coal, oil and gas resources coexist and the Wangying borefield of the Fuxin basin where coalbed gas was first discovered, researched and developed in China as examples, we systematically discuss the control of volcanism on the lateral and vertical distribution of brown coal, flame coal and gas coal in the third member of the Paleogene Shahejie Formation and on the gas source conditions of each coal region. Both the methane released in the process of regional plutonic metamorphism and the additional methane generated by contact metamorphism are calculated. The physical properties and storage capacity of the coal beds changed greatly due to the formation of blackcoal and highlymetamorphosed crevice coal from igneous intrusion. The sealing capacity of intrusions with various occurrences such as dikes is highlighted.

以煤、油、气共生的辽河盆地东部凹陷和我国首次在矿井中发现、研究、开发煤层气藏的阜新盆地王营井田为例，系统地阐述了火山活动在古近系沙河街组三段对褐煤、长焰煤和气煤在平面及垂向分布的控制，进而导致各赋煤区气源条件的不同；估算了王营井田在区域深成变质过程释放甲烷气的基础上，接触变质作用所形成的附加甲烷量；指出由于岩浆侵入形成了天然焦和高变质裂隙煤，使煤层物理性质及储集能力发生了大的变化；强调了岩墙等不同产状的岩浆侵入岩体对煤层气的封闭作用。

Taking the eastern sag of the Liaohe basin where coal, oil and gas resources coexist and the Wangying borefield of the Fuxin basin where coalbed gas was first discovered, researched and developed in China as examples, we systematically discuss the control of volcanism on the lateral and vertical distribution of brown coal, flame coal and gas coal in the third member of the Paleogene Shahejie Formation and on the gas source conditions of each coal region. Both the methane released in the process of regional plutonic metamorphism and the additional methane generated by contact metamorphism are calculated. The physical properties and storage capacity of the coal beds changed greatly, due to the formation of blackcoal and highly-metamorphosed crevice coal from igneous intrusion. The sealing capacity of intrusions with various occurrences such as dikes is highlighted.

以煤、油、气共生的辽河盆地东部凹陷和我国首次在矿井中发现、研究、开发煤层气藏的阜新盆地王营井田为例，系统地阐述了火山活动在古近系沙河街组三段对褐煤、长焰煤和气煤在平面及垂向分布的控制，进而导致各赋煤区气源条件的不同；估算了王营井田在区域深成变质过程释放甲烷气的基础上，接触变质作用所形成的附加甲烷量；指出由于岩浆侵入形成了天然焦和高变质裂隙煤，使煤层物理性质及储集能力发生了大的变化；强调了岩墙等不同产状的岩浆侵入岩体对煤层气的封闭作用。

Methyl bromides, in C_(3v) symmetry, have been extensively studied at their first absorption A-band because the behavior of these molecules can be used as a prototype for depicting numerous types of photodissociations in a variety of polyatomic molecules.

例如，有很多研究报道了C_(3v)对称的溴甲烷等分子在第一吸收带的光解，这是因为其光解行为可以作为理解其它多原子分光解的原型。

This investigation on the POM in a fluidized bed was first carried out in our country.

在国内我们首次开展了流化床甲烷部分氧化反应的研究。

Its IR spectrogram performed by potassium bromide showed characteristic absorption peaks in the wavelength of 2917, 2849, 1716, 1463, 1382 and 720cm~(-1), respectively.

EZR_(2002)外观为黄色或黄绿色粉末，熔点在74～79℃之间；经溴化钾压片后的红外光谱图显示在2917、2849、1716、1463、1382和720cm~(-1)处有特征性吸收峰；溶于二氯甲烷后的紫外光谱图显示在412nm处有强吸收，在665nm处有次强吸收，还分别在505、535和605nm附近有弱吸收。

Morever, it can judge the different stages of methanogens and preponderant bacterium in the system in terms of.

并且，也可依据来判断产甲烷菌生长的各个阶段及体系中微生物菌群的优势程度。

The experiments show that methane adsorption of coal in low pressure conforms to the adsorption law of Langmuir equation.

实验证明：煤的低压吸附甲烷气体符合Langmuir方程的吸附规律。

Methane and hydrogen are responsible for higher heating value of producer gas.

甲烷和氢气负责更高的生产煤气热值。

Rocky Mountains. A similar approach is being used to analyze the producibility of natural gas hydrates – methane trapped in ice in arctic regions and beneath sea beds.

类似的做法正在被用来分析天然气水合物的可生产性-甲烷被困在北极地区和海床以下的冰里面。

The response of anaerobic conversion of acetate and propionate to changes in temperature is investigated.

为提高厌氧发酵的效率，实现沼气发酵的可控化，采用序批次反应器来研究嗜热性微生物菌群在不同温度条件下对不同底物产甲烷潜力的变化规律。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。