hydrogen 高考四级六级考研GMAT

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

锻造后退火不足是导致含量过高主要因。

Water is made up of atoms of hydrogen and oxygen.

水由和氧构成。

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

馏分油临和非临降凝工艺技术均已工业。

Water is a compound of hydrogen and oxygen.

水是和氧合物。

Water was dissolved into hydrogen and oxygen.

水被分解为和氧。

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

学家可以把水中和氧分离开来。

Water can be reduced to oxygen and hydrogen by electrolysis.

用电解法可以把水分解为氧和。

Both hydrogen and oxygen are elements.

和氧都是学元素。

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

对铁酶活性中心进行学模拟将有可能产生出新型产催剂。

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

甲缩醛含氧量大、碳比高、闪点低，加入柴油中能够提高其十六烷值。

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

摘要目研究髓室内漂白时，磷酸锌水门汀基对抗过氧渗漏作用。

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

补给燃料系统是使用铝电解槽，来转换水和电，成为和氧。

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

以二乙胺和二碳为料,经双氧水(275%)氧,一步合成了四乙基秋兰姆二。

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反应特性研究进展。

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

转移、质、亚甲基桥形成可能是导致这些结构特征主要因。

Oxygen and hydrogen make water.

氧和构成水。

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

两种大分可以利用键或者库仑力形成高分复合物,根据不同作用力性质可分为键复合物(键作用)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.

叔丁基苯转率随分压升高而提高，正丁基苯转率随分压升高而降低。

The effects of process of electrolytically deposited nickel on the active side of oxidizing atomic hydrogen on base current were investigated.

研究了镀镍工艺对氧活性表面背景电流影响。

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

气态铅和在离开炼焦室时，由于煤气降低温度，又生成铅。