查询词典 hydrogen

Accordingly, the accident of sulfide stress corrosion cracking should be taken into account.The SSCC sensitivity and cracking time of 16Mn steel used to make the cold-high pressure segregator and common 16Mn steel in solutions with various H2S contents and pH values, simulated solution and operating solution were investigated by constant strain bend and slow strain rate test.Hydrogen diffusion coefficients of 16Mn steel, 16Mn steel and their welded seams were also tested by the electrolyte hydrogen charged method.Safety evaluation of the cold-high pressure segregator was given with above results.

针对制造过程中由于开孔失误而进行补焊的冷高压分离器在高压、高浓度的H2S环境的使用安全问题，采用了电化学充氢、恒应变和慢拉伸的实验方法，研究了制造冷高压分离器的主体材料16Mn钢和普通的16Mn钢及其焊缝的氢扩散系数，在不同H2S浓度、pH值，模拟冷高压分离器操作环境溶液和实际溶液中的腐蚀规律和硫化氢应力腐蚀开裂敏感性，结合实际腐蚀环境的检测和分析结果，对补焊后的冷高压分离器的使用安全给出了综合评估。

The solubility～temperture curve of rubidium hydrogen selenate in aqueous was measured,and the bulk crystal of rubidium hydrogen selenate was grown by solution temperature reduction method after some unfavorable factors such as floating crystals and climbing crystals et al.

本文测定了硒酸氢铷在水中的溶解度～温度曲线，并采用溶液降温法，克服了RHSe晶体生长时易漂晶、爬晶等不利因素，生长出大尺寸硒酸氢铷单晶。

With the increase of pressure, the hydrogen bond strength between water molecules increases, while self-diffusion coefficient decreases. With the increase of temperature, the hydrogen bond strength between water molecules decreases, while self-diffusion coefficient increases.

模拟结果表明，随着压强的增大，水分子间的氢键作用增强，扩散系数减小；随着温度的升高，水分子间的氢键作用减弱，有序程度下降，扩散系数增大。

The method of on-line hydrogen measurement detects the partial pressure to calculate the hydrogen content of the melted steel by Sievert'law.

钢中大多数重要的伴生元素都可以用自钢液中取出的试样在实验室里几分钟

The results showed that hydrogen peroxide, silanols species and TiO〓 didn't have solvolysis activity of propylene oxide. While framework Al, coordinatively unsaturated Ti〓 ions as Lewis acid sites in the framework, Ti-OH and the five member ring active titanium species formed by TS-1, hydrogen peroxide and solvent can catalyze the solvolysis of propylene oxide.

研究结果表明：原料双氧水和TS-1沸石上的SiOH和TiO〓对环氧丙烷溶剂解反应无催化活性；而下列物种对环氧丙烷溶剂解反应具有催化活性：TS-1中的骨架铝，沸石骨架中配位不饱和的Ti〓形成的L酸中心，TS-1水解产生的钛羟基和由TS-1，双氧水和溶剂相互作用所生成的五元环中间活性钛物种。

High-purity strontium carbonate, six water strontium chloride, nitrate strontium, strontium hydroxide, acetic acid strontium, strontium fluoride, hydrogen phosphate strontium, strontium peroxide, high-purity barium carbonate, barium acetate, high-purity hydrogen and oxygen in water 8 Barium, industrial-grade eight water barium hydroxide, barium peroxide, four water chlorination products such as the annual output of manganese 8,000 tons.

高纯碳酸锶，六水氯化锶，硝酸锶，氢氧化锶，醋酸锶，氟化锶，磷酸氢锶，过氧化锶，高纯碳酸钡，醋酸钡，高纯八水氢氧化钡，工业级八水氢氧化钡，过氧化钡，四水氯化锰等产品年产量8000吨。

It could be composed of 50 to 75 percent methane, 20 to 50 percent Carbon dioxide, around 10 percent Nitrogen, and less than 3 percent Hydrogen, Oxygen and Hydrogen sulphide.

它于50至75 ％的甲烷， 20至50％的二氧化碳，约有10 ％的氮，不到3 ％的氢，氧和氢硫化物等组成。

Through analyzing the environmental parameter in the fermented course of beer,improving final getting rate of the result,and guaranteeing that there is a suitable growth supersession environment in the whole process of operating,the chain system control method is proposed.The fermented temperature and hydrogen ion index are found,the systematic model of chain related each other is set up that is made up of temperature and hydrogen ion index main cause and effect chain.

通过对啤酒发酵过程中环境参数的分析，为了提高最终产物的得率，保证在整个操作进程中有一个适宜的生长代谢环境为目标，引入链系统控制方法，找到影响发酵温度和PH值等主要因素，建立由温度和PH值两条主要因果链组成的互相关联的链系统模型。

In the research of advanced key techniques, the technique of nano-catalyst is developed and tested according to the requirement for the catalytic flame stablizer gas turbine and the related reaction model wil be fully construced. In the aspect of hydrogen shift and separation process, we are going to probe into various operating parameters for the water shift reaction and the membrane reactor alread constructed. Also, the high efficiency DPMS-based hydrogen shift and separation system that carry out both water gas shift and pressure swing absorption will be tested. The main task this year is to construct the proto-type clean hybrid power generation system.

前瞻关键技术研究方面，奈米触媒制备技术将依触媒驻焰气涡轮引擎之需求进行开发与测试，并建立相关反应模式；气化合成气转化与分离技术部分，将进行已建立水气转移反应与薄膜反应器之各项操作参数探讨，并进行以双孔径分子筛为担体，附加水气转移反应与变压吸附分离所建立之高效率分离富集H2方法之系统实测。

This paper first presents a review of the existing hydrogen delivery methods. Then a study is made of the delivery cost, energy consumption and the safety of hydrogen transportation by tube trailer, tank and pipe.

首先结合文献定性介绍了现有氢气运输方式，然后对氢气通过长管拖车、槽车及管道运输的运输成本、能源消耗及安全性进行深入研究。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。