查询词典 hydrogen

The results show the hydrogen bonding is formed between acetone and water molecules and the strength of hydrogen bonging is related to the concentration of acetone.

由此说明丙酮与水分子间形成了氢键，而且氢键的强弱与丙酮水溶液的浓度有关。

The effect of electrolyte concentration and hydrogen pressure on hydrogen electrode process catalyzed by noble metal have been studied.

讨论了电解质浓度和氢气压力对低载量贵金属催化氢电极过程的影响。

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。

Active hydrogen atom and oxygen ion form Hydroperoxy radicals which surround the positively charged biological contaminants, and then react with three hydrogen elements of its protein structure, destroying and detoxicating the biological contaminants nature.

活性氢和氧离子(O2-)形成的氢过氧自由基，会包围着带正电荷的生物污染物，每一枚黏附在污染物表层的氢过氧自由基，会与其蛋白质结构中三个氢元素产生反应，完全破坏其结构，变成无毒状态。

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。

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