There is more methane,ethane, isobutane and isopentane in shaly limestone than in marlite.

泥灰岩比纯灰岩所产气体中含有更多的、乙、异丁和异戊。

The major components were Triphenylmethane, Phytol, n-Hexadecanoic acid, Phenol, 2,4,6-tris (1,1-dimethylethyl).And etc.

其主要成分是三苯基-、叶绿醇、正十六酸、2,4,6-三（1,1-二乙基）-苯酚等，这为进一步开发利用蒌蒿提供了科学依据。

"These permafrost deposits are now melting and releasing their methane," said Maslin.

“这些永久冻土中的沉积物开始融化，并释放出，”麦斯林说。

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

爆炸是由数袋气体着火引起的。

The reactor has some zymogen and acetogen, but no methanogen bacteria.

反应器中有一定量的发酵菌和产乙酸菌，但无产菌。

In a testing of petrolic engine, about 70% to 80% of nonmethane hydrocarbon is emitted into atmosphere without catalysis conversion in theoment of coldstart, so that serious pollution is produced.

在汽油机的一个测试循环中,约占放污染物总量70%～80%的非氢化合物是在汽油机冷起阶段没有经催化转化而直大气中,造成严重污染。

This article analyze the condition of demethanizer after revamping. The operation state afterwards the revamp is summarized and further optimization of the demethanizer is given in the paper.

摘要通过乙烯装置脱塔系统改造后的运行状况的分析，对脱塔改造后的运行状态进行了总结，并为更进一步的优化工艺条件提出措施。

Objective: To observe the effect of selenium on the TSH positive cells in the pituitary pars distalis of rat with colon mucosa cancer induced by azoxymethane (AOM).

观察硒对氧化偶氮(AOM)所致大鼠结肠癌形成过程中，垂体远侧部促状腺激素(TSH)阳性细胞的影响。

This article analyzes main factors that affect the actual operation of Demethanizer,and discusses the problems existing in the Demethanizer after the revamp of ethylene plant in Fushun,CCPC.

分析了影响中国石油抚顺石化分公司乙烯公司乙烯装置脱塔运行的主要因素,并针对乙烯装置改造后脱塔存在的问题进行了探讨。

Glycerin is validated as a good solvent in extracting DEM-ethanol liquid-liquidly, and thus the necessary basic data has been provided for industry extracting devices.

验证了丙三醇是液液萃取分离二乙氧基-乙醇的良好溶剂，为工业萃取装置设计提供了必要的基础数据。

The ubiquity of phenanthrene series, chrysene series compounds, perylene and retene compounds in the sediment indicated that PAHs mainly came from the terrestrial plants.

在样品中检测到角鲨烯，表明这一地区存在生物合成和细菌作用，具有生成油气及天然气水合物可能性。

Copper conductive adhesives were prepared using epoxy as matrix, the mixture of m-phenylenediamine and diaminodiphenylmethane as hardener, and copper particles as the conducting filler.

以环氧树脂为基体,间苯二胺和二氨基二苯的低融点混合物为固化剂,铜粉为导电填料,制备了热固化各向同性导电胶。

Desorption chemical ionization mass spectrometry of twelve metallohematoporphyrin complexes has been investigated under DEP condition using mixture of tetramethylsilane and methane as regent gas.

本文以四基硅／混合反应气，采用DEP技术，测定12个金属血卟啉络合物的解吸化学电离质谱。

The technology of two phase anaerobic digestion have a series of characteristics and advantages because of the separation of acidogenic phase and methanogenic phase.

两相厌氧消化工艺因产酸相和产相的分离而具有一系列的特点和优势。

The oxidative dimerization of aryl methanes in organic solvents by using alkaline catalysts is an important way to prepare diphenyl ethanes and diphenyl ethylenes.

芳基在有机溶剂介质中、碱催化下的氧化缩合反应,是合成二苯乙烯()类化合物的重要途径.

Thermokarst failures occur when permafrost—a layer of frozen soil in Earth's polar regions—thaws and becomes unstable, possibly releasing greenhouse gases into the atmosphere.

随着永久冻土带消溶和分崩离析，热喀斯特现象大量出现，埋藏于地下的（等）温室气体可能散发到大气中。

According to the literature, sarcina is oneof the methanogen that can produce methane in high performance.The remaining of sarcina willapparently improve methane production.

根据以往的资料显示，八叠球菌是产气较好的菌之一，这种菌的驻留会使整个产气效果明显提高。

The hydroxyl value of epoxy-containing polyester was determined by analyzing acetification principle and using acetyl chloride as acetifier and methylene chloride as solvent.

通过对其酰化原理分析,选用乙酰氯作酰化剂、二氯作酰化溶剂,测定含环氧基聚酯的羟值。

A new method of gas chromatographic analyses in the production of chloroacetic acid for process control using diazomethane as esterification agent is studied.

以重氮为酯化剂，用气相色谱法对氯乙酸生产的中控分析进行了研究。

It can also be prepared by reaction of bromochloromethane with sodium thiocyanate to obtain chloromethyl thiocyanate, and then it reacts with 2-mercapto-benzothiazole.

另一种2-巯基苯并噻唑法是先将溴氯与硫氰化钠反应生成硫氰酸氯酯，然后硫氰酸氯酯与2-巯基苯并噻唑反应得到苯噻氰。