查询词典 hydrogen ion

Chlorine atoms were selectively introduced into the chlorin ring based on different reactivity between vinyl group at 3-position and 20-meso position by electrophilic addition and electrophilic substitution using hydrogen peroxide/hydrochloric acid, N-chlorosuccinimide, hydrogen chloride (or concentrated hydrochloric acid) as chlorinating reagent.

以过氧化氢/盐酸、N-氯代丁二酰亚胺、氯化氢为氯化剂，根据3-乙烯基和20-meso-位的不同化学反应活性，通过亲电加成和亲电取代反应，在二氢卟吩环上选择性地引进氯原子，完成8种未见报道的具有叶绿素-a基本碳架的氯代二氢卟吩衍生物的合成。

The Clostridium, has been well studies for its ability to form endospores and its potential to generate hydrogen. In this research, we focus on the indigenous Clostridia and physiological characteristics of hydrogen production.

本研究之主要目的是希望能从不同来源样本分离出高效能的产氢菌株，研究高效能产氢菌株的生理特性以作为调控其产氢能力的基础。

The Clostridium, has been well studies for its ability to form endospores and its potential to generate hydrogen. In this research, we focus on the indigenous Clostridia and physiological characteristics of hydrogen production.

中文摘要本研究之主要目的是希望能从不同来源样本分离出高效能的产氢菌株，研究高效能产氢菌株的生理特性以作为调控其产氢能力的基础。

The results were as follows: 1 at normal or high temperature, the selected asphaltene dispersant could reduce the association of asphaltene molecules, 2 hydrogen-transfer of FCC decanted oil and its sub-fractions were evaluated by using anthracene and 9,10-dihydroanthracene as chemical probes, one of sub-fractions could be taken as hydrogen-donor.

本文首先从渣油生焦的关键组分沥青质入手，为热处理降蜡筛选抑制生焦的添加剂，在生焦率低于0.1w%的前提下，提高热裂解降蜡的深度。

Hydrogen energy is the ideal energy of 21th century. Electrolyzing water to make hydrogen is the most effective method. And in this research area, most important point is to develop new materials which are active in HER.

氢能源是理想的清洁能源，电解水制氢法是重要的制氢方法，研究开发具有高析氢催化活性的电极材料就成为该法中降低能耗的重要手段。

To realize the goal of environmental modernization in China, the paper proposes the process of coal gasification and hydrogen addition with the hydrogen from water electrolyzing to produce methanol, and compares it with coal direct and indirect liquefying processes which are popularized recently.

为了实现我国提出的生态现代化目标，提出了煤炭气化配水电解产生的氢制甲醇的煤炭现代化利用工艺，并与目前正在推行的煤炭直接、间接液化工艺进行了比较。

Renewable biomass and biomass-derived fuels could be readily gasified to produce a hydrogen-rich gas or pure hydrogen.

可再生的生物质及其他含碳燃料气化后能够产生富氢气体。

The hydrogen storage location should be permanently placarded:"Hydrogen –Flammable Gas – No Smoking – No Open Flames," or equivalent.

氢储存点要永久性地张贴：&氢——易燃气体——禁止吸烟——禁止明火&，或其它意义一样的内容。

The conducting wall in micro-tube preheats the inlet mixture by axial heat transfer. The existence of conducting wall will help to reach full reaction in the micro-tube. As the inlet velocity increases, both the existence of the surface catalytic combustion and the gas phase combustion become the limiting factors on combustion. Wall material and equivalence ratio of hydrogen/air mixture have important influence on catalytic combustion of hydrogen.

计算结果表明：表面催化反应对空间气相反应有抑制作用；在微型管道内，通过导热壁轴向间的传热，预热入口混合气体，使氢气燃烧更加充分；随着入口速度的增大，燃烧过程同时存在着表面催化反应和空间气相反应两种控制因素；管壁材料和当量比对氢气的催化燃烧过程有重要的影响。

The weight percentage for the components of the hyaline coating is as follows: SiO2 45 to 54 percent, B2O3 15 to 20 percent, one or more of Na2O, K2O and Li2O, 10 to 24 percent, one or more of TiO2, ZrO2 and ZnO, 6 to 18 percent , and the rest is one or more of CaO, MgO and CeO2. Firstly, the glass powder is mixed with the mill additions to be pulped and then plated on the surface of titanium or the titanium alloy. After being dried, the surface of titanium or the titanium alloy is directly used for a thermal hydrogen treatment or smelted at a temperature of 900 to 1, 000 DEG C for 15 to 30 minutes and then a hyaline coating with a thickness of 20 to 70 micrometers is formed on the surface of titanium or the titanium alloy; secondly, titanium or the titanium alloy plated with the coating is conducted a thermal hydrogen treatment. After the treatment technique is finished, the coating flakes off automatically in the process of cooling; and finally, a surface treatment is supplemented to meet the requirement of the workpiece surface.

该玻璃质涂层成分按重量百分比：45-54SiO2，15-20B2O3，10-24Na2O、K2O、Li2O中的一种或多种，6-18TiO2、ZrO2、ZnO中的一种或多种，余量CaO、MgO、CeO2一种或多种，将玻璃粉与磨加物混合制浆并涂覆在钛或钛合金表面，干燥后直接用于热氢处理，或在900-1000℃下熔烧15-30min，在钛或钛合金表面制得20-70微米玻璃质涂层，随后将制有该涂层的钛或钛合金置于氢气气氛下进行热氢处理，处理工艺结束后，涂层在冷却过程中自剥落，最后辅以表面处理即可满足工件表面要求。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48