氢气的

This is also accomplished due to the fact that in the system of this invention, the hydrogen is continuously flowing.

这也是完成，由于这一事实，即在系统中的这项发明，氢气不断流。

It discusses the Problems of how to ensure the safety in the running of hydrogen's combustion system and haw to improve heat efficiency of the steam superheater .

介绍了用氢气作为燃料的四氟乙烯装置蒸汽过热炉的设计特点，探讨了设计中如何保证氢气燃烧系统的安全运行以及提高蒸汽过热炉热效率的措施。

The invention is characterised in that the gaseous fuel containing hydrogen or consisting of hydrogen is fed into the swirl generator (1) largely axially and/or coaxially to the burner axis, forming a fuel flow, with a largely spatially defined flow form (9) which is maintained inside the burner and opens up in the region of the burner outlet.

本发明的特征在于，所述含有氢气或者由氢气所组成的气态燃料在涡流发生器(1)内相对于燃烧器轴线尽可能轴向地和/或同轴地、在形成燃料流的情况下以尽可能空间受限制的流动形状(9)被输入，该流动形状(9)在燃烧器内得以保持，并且在燃烧器出口的范围内绽开。

The hydrogenation and methyl esterification of furoic acid over Pd-Ni/γ-Al2O3 catalysts was investigated in fixed bed micro-reactor under different conditions such as reaction temperature,pressure,H2 space velocity,space velocity of furoic acid and methol,ratio of H2 and furoic acid and so on.

以糠酸、甲醇、氢气为原料，采用连续流动固定床微反应器，Pd-Ni/γ-Al2O3为催化剂，使糠酸一步加氢甲酯化生成α-四氢糠酸甲酯。研究了反应的温度，压力，气、液体流速，进料流量等因素对催化反应的影响。结果表明：在1.5MPa，250℃，氢气空速3300 h-1，液体空速3.0 h-1(氢油比为50)时，糠酸转化率为96.6%，四氢糠酸甲酯的选择性97.2.0%，产率94.0%。催化剂稳定性较好，连续运转280小时后未见活性下降。该反应体系活性高，选择性好，反应压力低，催化剂性能稳定，操作简单，产物易分离

In 500—1000 ℃, electronic hole conduction is dominant in dry and wet oxygen, air or nitrogen. Protonic conduction is dominant in wet hydrogen and it is about two orders of magnitude higher than that in hydrogen-free atmospheres.

在500~1000℃下，在干燥和潮湿的氧气、空气和氮气气氛中，样品以电子空穴导电为主；在潮湿的氢气气氛中，以质子导电为主，其电导率比不含氢气气氛（O2，air，N2）中的电导率约高两个数量级。

High-pressure liquefaction of a sawdust in syngas and hydrogen with tetralin as solvent was performed in an autoclave,and the effects of temperature,reaction time and initial reaction pressure on the sawdust high-pressure liquefaction were studied by testing the distribution and characteristic of liquefaction products.

在小型高压反应釜中以四氢萘为溶剂，氢气和合成气为液化反应气，通过对不同液化条件下所得液化产物的收率及性质分析，考察了不同液化条件(反应温度、反应时间、反应气压力)对锯屑高压液化行为的影响；同时在相同液化条件下，通过液化产物收率和性质的分析，考察了气氛对锯屑高压液化行为的影响，探讨了用合成气代替氢气进行液化的可行性。

And it is an necessary condition to ensure the dynamotors high efficiency and safe working that the parameters about hydrogen are well-balanced.

本文简要的分析了氢冷发电机系统对氢气参数进行监测的必要性以及当前电力系统的氢气参数监控系统的发展情况。

The results indicated that BaCe0.8Ho0.2O(subscript 3-α) sinters are of single-phase structures of orthorhombic perovskite. In the temperature range of 600~1000℃, the nonstoichiometric materials (x=1.03 and 0.97) have higher conductivities in wet hydrogen and wet air and better performances of hydrogen-air fuel cells than the stoichiometric one (x=1). In this series, BaCe0.8Ho0.2O(subscript 3-α) has the highest conductivities 2.10×10^(-2Scm^(-1) in wet hydrogen, 3.46×10^(-2) Scm^(-1) in wet air, at 1000℃ and the maximum power output density 122 mWcm^(-2 at 1000℃.

结果表明，在600~1000℃温度范围内、湿润氢气和湿润空气气氛中，该系列材料的电导率随温度和钡离子含量的变化均与以该系列材料为固体电解质的氢－空气燃料电池性能随温度和钡离子含量变化的次序一致，即：非化学计量组成材料BaCe0.8Ho0.2O(下标 3-α)(x=1.03， 0.97)具有较化学计量组成材料BaCe0.8Ho0.2O(下标 3-α)(x=1)高的电导率和氢－空气燃料电池输出功率密度，其中BaCe0.8Ho0.2O(下标 3-α)有最高的电导率（1000℃时、在湿润的氢气气氛中：2.10×10^(-2)Scm^(-1)；在湿润的空气气氛中：3.46×l0^(-2)Scm^(-1)）和最大的氢－空气燃料电池输出功率密度（1000℃时：122mWcm^(-2)）。

According to hydrogen pressure vessel and non-heat pressure vessel of power supply corporation in chongqing electric net as research object , applying exoterica analyse and physical chemistry test to hydrogen pressure vessel and non-heat pressure vessel and carrying through the safety performance evaluation and analyse and research of test .

以重庆电网内发供电企业内装置的氢气压力容器及非热力压力容器为研究对象，应用理论分析和物理化学试验相结合的方法，对氢气压力容器及非热力压力容器进行安全性能评估和检验的分析和研究。

PRNewswire-FirstCall/-- Nanologix, Inc.,, a nano-biotechnology company engaged in the research, development and commercialization of technologies for alternative sources of fuel, today announced that its team of microbiologists have recently discovered a reliable and simple way to produce hydrogen gas that can be used to power cars, homes and businesses without polluting the environment.

Nanologix公司是一个从事替代性燃料开发与商业化运作的纳米生物技术公司，最近他们发表声明，他们的微生物学家发现了一个可靠并简单的途径来生产氢气，氢气可以用于汽车驱动、家庭和商业供电，而不会污染环境。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。