hydrogen 高考四级六级考研GMAT

Both hydrodewaxing and dewaxing without hydrogen have been commercialized in China.

馏分油临氢和非临氢降凝工艺技术均已工业。

Water is a compound of hydrogen and oxygen.

是氢和氧的合物。

The main reason of leading to overhigh hydrogen content was insufficient anneal after forged.

锻造后退火不足是导致氢含量过高的主要原因。

Water is made up of atoms of hydrogen and oxygen.

由氢和氧的原子构成。

Water was dissolved into hydrogen and oxygen.

被分解为氢和氧。

A chemist can isolate the oxygen from the hydrogen in water.

学家可中的氢和氧分离开来。

Water can be reduced to oxygen and hydrogen by electrolysis.

电解法可分解为氧和氢。

Fe-only hydrogenase can catalyze the reversible reaction of protons and electrons to molecular hydrogen in nature.

对铁氢酶活性中心进行学模拟将有可能产生出新型的产氢催剂。

Dimethoxymethane possesses higher quantity of oxygen, higher ratio of hydrogen to carbon and lower flash point.

甲缩醛含氧量大、氢碳比高、闪点低，加入柴油中能够提高其十六烷值。

Both hydrogen and oxygen are elements.

氢和氧都是学元素。

Objective To study the effect of zinc-oxide phosphorate base on preventing hydrogen peroxide leakage in intracoronal bleaching.

摘要目的研究髓室内漂白时，磷酸锌门汀基对抗过氧氢渗漏的作。

Tetraethyl thiuram disulfide was synthesized one step from diethylamine and carbon bisulfide with hydrogen peroxide(27.5%) as oxidant.

二乙胺和二碳为原料,经双氧(275%)氧,一步合成了四乙基秋兰姆二。

The re-fuelling system works using an "electrolyser" which converts water and electricity into pure hydrogen and oxygen.

补给燃料系统是使铝电解槽，来转换和电，成为氢和氧。

Hydrogen transfer, protonization and formation of methene bridge are probablely the main reasons for the above structural characters.

氢转移、质子、亚甲基桥的形成可能是导致这些结构特征的主要原因。

This article summarized the research development of the reaction characteristic between lignin quinonoid chromophoric group and hydrogen peroxide.

概述了木素醌型发色基团与过氧氢反应特性的研究进展。

Oxygen and hydrogen make water.

氧和氢构成。

Interpolymer complexes can be formed by two polymers through hydrogen bond or electrostatic force include hydrogen complexes and polyelectrolyte complexes.

两种大分子可利氢键或者库仑力形成高分子复合物,根据不同的作力性质可分为氢键复合物(氢键作)和聚电解质复合物(静电力)。

With the raising of partial hydrogen pressure, the cracking reaction of tert-butylbenzene is prompted, while the conversion of butylbenzene is restricted.

叔丁基苯的转率随氢分压的升高而提高，正丁基苯的转率随氢分压的升高而降低。

The existence of hydrogen bond within or between the molecules of pigment can enhance the perdurability, light fastness and weather resistance.

分子内和分子间氢键的存在可提高颜料的耐久性、耐光性和耐气候牢度等。

Homogenous reaction between hydrogen sulfide and elemental lead vapor removes hydrogen sulfide efficiently as the hot coal gas left the carbonizer.

气态铅和氢在离开炼焦室时，由于煤气降低温度，又生成铅。