hydrogen 高考四级六级考研GMAT

Water was dissolved into hydrogen and oxygen.

被分解为和。

Water is a compound of hydrogen and oxygen.

和的化合物。

Hydrogen and oxygen are the constituents of water.

和的主要成分。

Hydrogen combines chemically with oxygen to form water.

和化合成为。

Water can be reduced to oxygen and hydrogen by electrolysis.

用电解法可以把分解为和。

Water is made up of atoms of hydrogen and oxygen.

由和的原子构成。

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化。

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

化学家可以把中的和分离开来。

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

锻造后退火不足导致含量过高的主要原因。

Both hydrogen and oxygen are elements.

和都化学元素。

Hydrogen is a corlorless, odorless gas.

气一种无色、无味的气体。

Oxygen and hydrogen make water.

和构成。

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

甲缩醛含量大、碳比高、闪点低，加入柴油中能够提高其十六烷值。

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

对铁化酶活性中心进行化学模拟将有可能产生出新型的产催化剂。

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

以二乙胺和二硫化碳为原料,经双(275%)化,一步合成了四乙基秋兰姆化二硫。

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

补给燃料系统使用铝电解槽，来转换和电，成为和。

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，锌门汀基对抗过化渗漏的作用。

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化反应特性的研究进展。

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

转移、质子化、亚甲基桥的形成可能导致这些结构特征的主要原因。

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

两种大分子可以利用键或者库仑力形成高分子复合物,根据不同的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)。