hydrogen

英 [ˈhaɪdrədʒən]

美 [ˈhaɪdrədʒən]

n.  氢; 氢气

复数：hydrogens　

高考CET4CET6考研TOEFLIELTSTEM4TEM8化学

Collins.2 / BNC.5200 / COCA.5103

牛津词典

noun

• 氢；氢气
  a chemical element. Hydrogen is a gas that is the lightest of all the elements. It combines with oxygen to form water.

柯林斯词典

• 氢;氢气
  Hydrogenis a colourless gas that is the lightest and commonest element in the universe.

英英释义

noun

• a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas
  Synonym:Hatomic number 1

双语例句

• But why water and not, say, hydrogen peroxide or even ammonia?
  可是，为什么是水，而不是双氧水或是氨水呢？
• The simplest covalently bonded molecule is formed from two hydrogen atoms.
  最简单的共价键分子由两个氢原子组成。
• This simple molecule consists of one oxygen atom and two hydrogen atoms.
  这个简单的水分子由一个氧原子和两个氢原子构成。
• Among the common toxic gases are sulfur dioxide, methane, the oxides of nitrogen, ammonia, hydrogen sulfide, and hydrogen cyanide; and ( most commonly) carbon monoxide.
  常见的有毒气体有二氧化硫、甲烷、氧化氮、氨、硫化氢、氰化氢以及最常见的一氧化碳。
• Hydrogen and oxygen are the constituents of water.
  氢和氧是水的主要成分。
• Water is made up of atoms of hydrogen and oxygen.
  水由氢和氧的原子构成。
• Acids produce positively charged hydrogen atoms when dissolved in water.
  酸在水中溶解时可生成带正电荷的氢原子。
• They'd have a lot of hydrogen sulfide gas bound up in their cells.
  他们的牢房里有大量的硫化氢气体。
• Carbon, hydrogen and oxygen combine chemically to form carbohydrates and fats
  碳、氢、氧化合形成碳水化合物和脂肪。
• Water contains hydrogen and oxygen.
  水含有氢和氧。