氢

Hydrogen induced cracking problem of pipelines exists extensively in natural gas transportation engineering, especially for ...

在天然气输送管道中，广泛存在着氢致开裂问题，尤其是输送硫化氢含量较高的天然气，管道的氢致开裂问题更为突出。

Moreover, it was found out that the status of gas-producing was related with the growth curve of four bacteria strains selected from the sludge.

此外，废水产氢规律与从污泥里筛选出的产氢菌生长曲线有密切的关系。

Hydrogen bond that are the glue holding groups of water molecules together are so plentiful in water that they play a large role in determining its properties.

在水中，存在着大量的将水分子胶粘在一起的氢键，因此氢键在决定水的特性方面发挥了巨大的作用。

One of the main reasons is the influence of hydrogen bonds, such as glycollic and benezene and alkanones, and benezene volatile rate is 2 times the ethanol, butanol alkanones than n-butyl acetate low and volatile rate is also low, from here discernthat chemonucleolysis dosage form hydrogen bonds to limit business card printing and membership card making ink ink film volatile plays an important role to play.

主要原因之一是氢键的影响，如乙醇和苯的沸点接近，而苯的挥发速率为乙醇的2 倍，丁醇的沸点比醋酸正丁酯低，而挥发速率也低，从这里看出氢键对限制溶解剂型制卡和会员卡制作油墨的墨膜挥发起着重要的作用。

The effect of reactor configuration and technical parameters on the gross heat efficiency and "hot spot" temperature was investigated in an autothermal operation process of methanol partial oxidation based on the balance of mass and energy balance as well as kinetics of the reactor.

在质子交换膜燃料电池移动氢源———甲醇氧化重整制氢自热体系中，研究了反应器构型对产氢能量效率和床层内&热点&温度的影响，得到了反应器设计准则，提出了实际应用中可采用的反应器型

The invention relates to a continuous method for the intermediate separation of the oxirane produced by the reaction of a hydroperoxide with an organic compound, characterised in that the product mixture generated during the synthesis is separated in a partition-wall column into a low-, middle and high-boiling fraction and the oxirane is taken off with the middle-boiling fraction at the side tap point of the column and the hydroperoxide is taken off with the high-boiling fraction from the bottom of the column.

一种对在环氧烷合成中通过氢过氧化物与有机化合物反应形成的环氧烷进行中间分离的连续方法，其中在隔离壁塔中将该合成中形成的产物混合物分馏得到低沸点馏分、中间沸点馏分和高沸点馏分，并在侧线采出处从中间沸点馏分中取出所述环氧烷，在该塔的底部从高沸点馏分中取出所述氢过氧化物。

The probable application of hydrogen isotopes and metal hydrides to future energy source is reviewed.

评述了氢同位素与金属氢化物在未来能源中的应用。

This thesis introduces the characters and application of metal hydrides and the newest devolepment of the study co metal hydrides all over the world.

本文介绍了金属氢化物的性质与应用，与及国内外金属氢化物研究的最新动向。

Metal hydrides, such as LiBH4 and LiAlH4 are used preferably as hydrogen-containing fuels.

金属氢化物如LiBH 4 和LiAlH 4 优选被用作含氢燃料。

The combination of these hydrides with some transition metal complexes exhibits high catalytic activity for the hydrogenation of olefins.

它们具有比一般市售碱金属氢化物高得多的反应活性，并能与过渡金属配合物组成高活性烯烃加氢催化。

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。