查询词典 tris nitro-methane

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。

The experimental results indicated that the yield of 2,6-DMN can reach above 38%, when the usage of dimethylnaphthalene was 2g, the temperature reached 18℃, the reaction time was 2.5h, the mole ratio of water-free aluminum trioxide to dimethylnaphthalene was 0.8, the mole ratio of transmethylation agent tetramethylbenzene to dimethylnaphthalene was 1.0, the usage of methane trichloride was 15mL.

结果表明，2-甲基萘(2-MN)使用量为2g时，反应温度为18℃、时间为2.5h、n：n（2-甲基萘）=0.8、n：n（2-甲基萘）=1.0、二氯甲烷用量为15mL时，2，6-DMN的收率可达38%。

The 2002 edition of "Hygienic Standard for Cosmetics" in the provisions of banned cosmetics has 496 kinds of chemical substances, while the 2007 version by the new and change, a total of 1286 kinds of banned chemicals, including chlorine acetaldehyde, chlorinated methane, trichloro toluene.

在&2002年版卫生标准的化妆品禁止在化妆品的规定&的496种化学物质，而新的变化，但一千二百八十六种禁止化学品，包括氯乙醛，氯化甲烷，三氯共2007版甲苯。

The invention relates to a pipeline polyurea outer anticorrosive coating and the making method thereof, making heated prepolymerization reaction on dibenzo-methane diisocyanate, carbodiimide diisocyanate, polyether binary alcohol and polyether trihydric alcohol to prepare prepolymer solution A, and making end amino polyethylene oxide ether, dimethyl sulfur-based toluene diamine, diethyl diamine, iso-propyl titanate solution, polyacrylate, carbon black, titanium dioxide and lightweight calcium carbonate into solution B, and as using, respectively heating the solutions A and B to 65 deg.C and then mixing them, then quickly spraying and curing to form a coat.

本发明涉及一种管道用聚脲外防腐涂料及制造方法，由二苯基甲烷二异氰酸酯、碳化二亚胺化二异氰酸酯、聚醚二元醇和聚醚三元醇通过加热预聚反应制成预聚物的A液、由端氨基聚氧化乙烯醚、二甲硫基甲苯二胺、二乙基甲苯二胺、钛酸异丙酯溶液、聚丙烯酸酯溶液、碳黑、钛白粉和轻质碳酸钙配制而成的B液组成，使用时将A液和B液分别加热至65℃后混合，然后快速喷涂固化形成涂层。

Thus, CO2 can be sequestrated in the deep unminable coal seams which enhance coalbed methane production of the deep unminable coal seams synchronously.

由于煤介质具有特殊的双重孔隙结构、吸附性强等物性特征，对CO2具有很强的吸附能力，且大于煤介质吸附CH4的能力，因此，可将CO2注入深部不可开采煤层储存，在长久处置CO2的同时亦可促进深部煤层气的开采。

The catalytic activity is much higher than that of the unpromoted sample Fe/Zr, while light olefins selectivity decreases and methane formation increases.

催化剂的催化活性比Fe/Zr及Fe/La催化剂都大大提高，甲烷选择性也有所增加，烯烃选择性降低。

Methane (as a typical poly-atomic molecule gas) and argon are investigated through shock experiments respectively. In eachexperiment, the unshocked specimen is in the state of normal atmosphere and roomtemperature.

分别选用甲烷(作为典型的多原子分子气体)和氩气进行了实验研究，实验的初始条件接近常态。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。