hydrogen 高考四级六级考研GMAT

Water was dissolved into hydrogen and oxygen.

被分解为和氧。

Water is a compound of hydrogen and oxygen.

是和氧的化合物。

Hydrogen and oxygen are the constituents of water.

和氧是的主要成分。

Hydrogen combines chemically with oxygen to form water.

和氧化合成为。

The balloon was distended because of filling of hydrogen.

气球因充满了气而膨胀。

Water is made up of atoms of hydrogen and oxygen.

由和氧的原子构成。

Water can be reduced to oxygen and hydrogen by electrolysis.

用电解法可分解为氧和。

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.

化学家可中的和氧分离开来。

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

导致含量过高的原因可能在于锻后退火不足。

Both hydrogen and oxygen are elements.

和氧都是化学元素。

Hydrogen is a corlorless, odorless gas.

气是一种无色、无味的气体。

Oxygen and hydrogen make water.

氧和构成。

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。

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。

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.

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

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氧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是导致这些结构特征的主要原因。