查询词典 hydrogen

When we open and clean the chamber, odor as well as toxic gasese.g., hydrogen chloride, cyanogen chloride, hydrogen cyanide, etc.

在打开密闭反应腔及擦拭腔壁时会产生极刺鼻味道且含有HCl、HCN、CNCl等毒性气体，会逸散至洁净室，所造成劳工健康危害。

When we open and clean the chamber, odor as well as toxic gases(e.g., hydrogen chloride, cyanogen chloride, hydrogen cyanide, etc.) are released.

在打开密闭反应腔及擦拭腔壁时会产生极刺鼻味道且含有HCl、HCN、CNCl等毒性气体，会逸散至洁净室，所造成劳工健康危害。

Wedgeplug O-Seal plug valves with their positive, no-leak features are not only recommended as the best general purpose valves for handling hydrocarbons, vegetable oils, solvents, etc., but are ideal for such tough service as butane, propane, butadiene, acetone, ethyl alcohol, ammonia, anhydrous ammonia, benzene, vinyl chloride, dry chlorine, Dowtherm, ethane, ethylene, hydrogen chloride, napthalene, oxygen, hydrogen, phthalic anhydride, dry phosgene, phosphoric acid, potassium carbonate, styrene, molten sulphur, sulphur dichloride and related services within a temperature range from -300oF to + 450oF within pressure limits of the valves.

楔塞O形密封旋塞阀具有积极的、无泄漏特性，不但是最好的通用的阀门，用于处理碳化氢，植物油，溶剂等，还特别适用于严酷的应用环境，如丁烷，丙烷，丁二烯，丙酮，乙醇，氨，无水氨，苯，氯乙烯，干氯，道氏热载体，乙烷，乙烯，氯化氢，萘，氧，氢，邻苯二甲酸酐，干碳酰氯，磷酸，碳酸钾，苯乙烯，融化硫，二氯化硫，以及温度在-184oC至232oC之间，压力在阀门额定压力等级范围内的有关应用。

Hydrogen peroxide is a high-efficacy oxidation disinfectant, with strong broad-spectrum biocidal efficacy and no decomposed toxicity. Lately, hydrogen peroxide has turned into the main environment-friendship disinfectant material.

过氧化氢是一种氧化型高效消毒剂，杀菌能力强，杀菌谱广，分解后无残留毒性，近年来已经成为开发环保型消毒剂的主要消毒剂。

This thesis put that, although ETF and BATF had the same biogas yield, their hydrogen yields were remarkably different in the same testing condition because the hydrogen content in their produced biogases were different due to the difference of their metabolic pathways.

本研究先后从连续流反应系统的乙醇型发酵阶段和丁酸型发酵阶段分别7次采集分离样品，从中分离到215株产酸发酵细菌，其中有36株具有产氢能力。

Three dimensional hydrogen bonding in hard segment domains can be formed by further bonding of the above planar hydrogen bondings.

认为这些平面氢键可以通过进一步键合来形成硬段微区中的三维氢键。

Consequently we found two principal results in this investigation.(1) The crystal structures of molecular crystals formed from different chlorobenzoic acids and three kinds of organic bases showed that in addition to common hydrogen bondings, the weaker intermolecular interactions such as the C-H…O hydrogen bonding, the π-π stacking and electrostatic interaction play an important role in determining the packing modes of each molecular crystal.

在对双分子晶体结构的研究过程中，我们发现存在以下两条规律：（1）不同的氯苯甲酸与三种有机碱形成的双分子晶体的结构显示，除了常见的氢键作用外，弱的分子间相互作用，例如C-H…O类型的氢键、π—π相互作用、静电相互作用等对于不同分子堆积模式的形成也起到了很重要的作用。

Hydrogen bondings induced from carboxylic groups were intentionally designed at the end of the arm of these star-shaped molecules. The hydrogen bonding positions of the so-perpared star-shaped oligofluorenes were similar to those of trimestic acids which has been intensively studied, and this enlightened us to design these moleucles.

通过羧酸基团，我们将(来源：A3bBCe6论7e文网www.abclunwen.com)氢键作用引入到了星状分子的各条臂上，而这种结构和已被广泛研究的苯三酸体系形成了类似的结构：这也是启发我们设计这个分子结构的原因。

In this thesis, two chemical structural models were constructed based on several structure parameters derived from FTIR and 13C NMR data, which were processed by curve-fitting and curve-resolved. Modified models were obtained by simulation oftheir molecular vibration spectra using Cerius 4.6/IR module andthe structural parameters from 13C NMR. Potential energy, bondenergy and non-bond energy of the minimum-energy conformations of coal macromolecules were calculated by molecular mechanics calculation and molecular dynamics simulation. These results demonstrate the importance of hydrogen bonding and van der Waals interactions in the formation and stabilization of coal macromolecular structure, and a strongest tendency of hydrogen bonding interactions to increase with the coal molecules but the Coulombs force.

本文运用煤结构的傅立叶红外光谱和固体核磁共振碳谱~(13C NMR测试方法所得的结果，经过谱图分峰、分析，计算出若干表征煤大分子结构参数，并综合前人的经验和共识，利用计算机分子绘图软件系统构建了表征两种褐煤的化学结构模型，在Cerius~2 4.6／IR模块中计算了分子振动红外光谱，同时结合碳谱所计算的分子结构参数拟合、修正了该结构模型，得到了能表征这两种煤样的分子结构模型，作为用分子动力学模拟和量子化学计算的初始结构模型。

In this paper,the principle of absorbing/desorbing hydrogen and researching progress of some kinds of light metal-aluminum hydride s as hydrogen storage material are introduced.

介绍了几种轻质金属-铝氢化物贮氢材料的吸放氢机理和研究进展。

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