查询词典 hydrogen

Hydrogen, which can be made electrolytically from water and used to power fuel cells, is difficult to handle.

氢气，可以通过对水进行电解制造出来，也可以用来给燃料电池提供能量，但是处理起来困难。

In the nickel samples charged electrolytically with hydrogen in a solution of 1NH〓SO〓+250mg/l As〓O〓 a hydride is formed.

第二部分研究了高纯铁中的氢损伤规律和冷轧镍中氢化物的分解过程。

The carrier gas is passed through the capillary where the moisture it holds is quantitatively absorbed by the phosphorous pentoxide and decomposed electrolytically into hydrogen and oxygen by the application of a D.C.

载气气流过毛细管，在这里载气气流中的湿气将被五氧化二磷定量地吸收，通过向两电极上施加直流 70V 的电压可将吸收的湿气电解成氢和氧。

The technique and economic comparison between it and the technique of preparing hydrogen gas by water electrolyzation was carried out.

张玫概要阐述了甲醇裂解制氢的原理及其在山梨醇生产中的应用，并与水电解制氢进行了技术经济比较。

Especially, the development of Ni-MH high-power battery and high-power rare earth hydrogen-storage alloy materials not only complies with the industrial policy on rare earth resource fine processing in China, but also became a key national science project – associated project for electromotion automobile industry; it's the pivot high-tech industry backed by the government and it will also accelerate the transformation of China's abundant rare earth resources to technical and economical advantages; and it will also impel the development of relative industries. Therefore, it plays a critical role to create more economic and social benefits.

特别是镍氢动力电池用低成本、高功率稀土贮氢合金材料的开发，不仅符合我国稀土资源深加工的产业政策，也是国家重点攻关项目——电动汽车产业化的配套项目，是国家重点扶持的高科技产业，将促进我国丰富的稀土资源优势转化为技术经济优势，带动相关产业的发展，具有十分重要的经济效益和社会效益。

Based on the overlap of electron cloud, the ground state hydrogen molecule structural parameters are calculated with the cla...

时z、e及a0 均为 1，获得Re=1 414a 。u 。，De=0 177a 。u 。，k =0 3 5 4a 。u 。，这些数值与实验值的相对误差分别%，%和%；成键模型直观，物理意义明确，计算中不含任何人为性参数

The strongest attraction between two dipoles is when one or both of them involves a bond between hydrogen and a strongly electronegative atom, like oxygen, fluorine, or nitrogen.

氢键：氢键是极性很强的X－H键上的氢原子与另外一个键上电负性很大的原子上的孤对电子相互吸引而形成的一种键。

Bond'.'' consisting of a hydrogen atom between two electronegative atoms (e.g., oxygen or nitrogen) with one side be a covalent ''.

一种化学键：由两个负电原子及其间的氢原子组成，其中一边是共价键，另一边是离子键。

On the electronegative elements, bonding electron number and bonded hydrogen atomic number, new molecular topological index is developed to do research on creaturely activity for alcohol, aether, ketone and ester in this paper.

基于元素的Pauling电负性，原子成σ键的电子数，原子直接键连的成σ键的氢原子数目和原子在形成离域π键时所提供的P电子数，定义了一种原子点价公式，构建了分子连接性指数。

A chemical bond consisting of a hydrogen atom between two electronegative atoms (e.g., oxygen or nitrogen) with one side be a covalent bond and the other being an ionic bond .

一种化学键：由两个负电原子及其间的氢原子组成，其中一边是共价键，另一边是离子键。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。