hydrogen

英[ˈhaɪdrədʒən]美[ˈhaɪdrədʒən]

n.<化>氢；

复数：hydrogens;

例句

hydrogen sulfide硫化氢

hydrogen peroxide过氧化氢; 双氧水

A chemist can isolate the oxygen from the hydrogen in water.化学家可以把水中的氢和氧分离开来。

Hydrogen combines chemically with oxygen to form water.氢和氧化合成为水。

Hydrogen evolution is always a possibility in water solutions.水溶液中氢的析出永远是可能的。

Water is made up of atoms of hydrogen and oxygen.水由氢和氧的原子构成。

The addition of steam inhibits the production of hydrogen cyanide.水蒸气的加入会抑制氰化氢的生成.

Increasing the system pressure increases the concentration of ammonia and hydrogen cyanide.增大体系压力能使氨和氰化氢的浓度升高.

The addition reaction with hydrogen cyanide is base - catalysed.与氰氢酸的加成是碱催化的.

Hydrogenated styrene - butadiene rubber ( HSBR ) was prepared by hydrogenating styrene - butadiene rubber ( SBR ) latex with hydrazine hydrate - hydrogen peroxide - copper sulfate catalytic system.用水合肼/双氧水/硫酸铜催化体系对丁苯橡胶 ( SBR ) 胶乳加氢,可制备氢化丁苯橡胶 ( HSBR ).

英语六级真题

Most hydrogen and oxygen atoms in water are stable, but traces of both elements are also present as heavier isotopes.

柯林斯高阶英汉双解学习词典释义

N-UNCOUNT

氢;氢气

Hydrogen is a colourless gas that is the lightest and commonest element in the universe.

英汉词典释义

n.

〈化〉氢,氢气

英英词典释义

Noun

1. a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe

行业词典

医学： 氢：*轻的元素，无臭、无味、无色的气体，易燃，与空气混合即爆炸；存在于水及一切有机化合物中；在所有酸的水溶液中氢离子都是其活性成分；化学符号H，原子序数为1，原子量1.00797，比重0.069，有三种同位素，即普通的氢或氕(音撇)、氘(音刀)和氚(音川)。氕为轻氢，即质量为1的同位素；氘为重氢，即质量为2的同位素；氚为质量为3的同位素；

天文学： 氢，分子式为“ H”，原子数为2；

物理学： 储氢材料，hydrogen-storage material；类氢原子，hydrogen-like atom；

电力： 氢氧燃料电池，hydrogen-oxygen fuel cell；氢油平衡阀，hydrogen-oil equalizing valve；蒸汽中氢分析器，hydrogen-in-steam analyzer；氢冷汽轮发电机，hydrogen-cooled turbogenerator；氢冷电枢绕组，hydrogen-armature winding；氢冷调相机，hydrogen-cooled compensator；