查询词典 methane

Secondary fermenters:key organisms in the conversion of complex organic materials to methane (espacially the H2-producing fatty acid-oxidizing bacteria).23、List two syntrophic microorganisms and describe a bit.

乙醇发酵菌发酵乙醇产生H2和乙酸，产甲烷菌消耗利用乙醇酵解菌产生的H2，总反应为产能反应，产甲烷菌不能直接利用乙醇。

A combination analysis of SIP and in situ microbiological methods was applied on the anaerobic digestion of biomass organics suffering from severe acids inhibition. The studies found that accumulated acids were degraded mainly by Methanosarcina firstly with acetoclastic pathway and then with hydrogenotrophic pathway under mesophilic condition, whereas acids were mainly degraded to methane by the tandem reactions of syntrophic acetate oxidation and hydrogenotrophic methanogenesis under thermophilic condition.

联合应用稳定同位素表征技术和微生态原位表征方法，对高浓度有机酸胁迫条件下的生物质类有机物厌氧发酵甲烷化途径的研究结果表明，面临高浓度有机酸迅速累积的环境，中温发酵条件下，优势菌种为甲烷八叠球菌，依时间次序，通过乙酸发酵和氢营养型途径利用累积的有机酸产生甲烷；而在高温条件下，有机酸则通过乙酸氧化和氢营养型甲烷化途径的串联反应被降解。

Gas Enhanced Coalbed Methane Recovery Technologyhas been paid the ex- tensive attentions by the world's major developed countries.

low permeability ；气体驱替煤层气技术的相关研究受到世界主要发达国家的广泛重视。

Identification and mapping of the small-amplitude faults in the coalfield and prediction of the methane saturated formations in coal province based on the AVO analysis in a thin-layered cross-section that offered by Tesseral / TetraSeis .

在煤田中小幅度断层的识别和制图以及在大煤区中由Tesseral／TetraSeis提供的基于在一个薄层剖面中的 AVO 分析来预测甲烷饱和地层等来自于前苏联的技术，有助于新矿脉的设计，了解水动力并了解甲烷运移的可能途径

The lowest detection limit were 0\^1032 μg/L chloroform and 0\^01219 μg/L tetrachloro\|methane. This method not only simplified the operating processe...

同时 ，本方法简化了操作过程，方法灵敏度得到较大提高，并且准确度和精密度均符合检测要求。

Headspace ; chloroform ; tetrachloro\|methane ; water

顶空法；氯仿；四氯化碳；水质

The device takes the varying quantity of the thermoelectromotive force regulation between that two components as the standard for the change of methane's density. The device can test the density directly, differs from the traditional test pattern which use the resistance change to cause the variation of the Wheatstone bridge output electromotive force.

设计出了一种全新结构的载体催化元件，它的特点是将两元件间的温差电动势的变化量作为衡量CH4气体浓度变化的标准，直接进行测试，有别于传统的利用电阻变化引起惠斯登电桥输出电动势变化的测试模式。

Isotopic data for several of these rock units indicate that the methane within the inferred gas hydrate occurrences originated from both microbial and thermogenic processes.

几个岩石样品的同位素分析数据表明甲烷的出现源自微生物和热成的作用。

The authors anticipate this argument and note that their primary fluid inclusions lack the higher hydrocarbons that are normally associated with the most strongly 13C-depleted thermogenic methane.

作者们期盼着这一论据，同时也注意到了它们的原始流体内含物中缺少了一种通常都伴随有最为稳定的13C缺失的产热甲烷的，更为高级的碳氢化合物。

In c oal bed gas exploration and development in recent years,the gas source of the c oal bed methane is mainly considered from the viewpoint of thermogenic gas,however,whether the secondary biogas can be generated through the degradation of c oal by anaerobic bacteria is always a problem concerned by the people.

近年的煤层气勘探开发工作中，主要从热成气角度考虑煤层甲烷的气源，而煤能否被厌氧菌降解生成次生生物气则一直是人们所关心的问题。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。