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

• 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。
• The first bubbles to escape from the liquid are a mixture of air and hydrogen.
  从该液体中最先逸出的气泡是空气和氢的混合物。
• Hydrogen combines chemically with oxygen to form water.
  氢和氧化合成为水。
• 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？
• 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。
• Water can be resolved [ decomposed] into hydrogen and oxygen.
  水可分解为氢和氧。
• Hydrogen is a one-valence element.
  氢是一价的元素。
• Oxygen, hydrogen and nitrogen are all gases.
  氧气、氢气和氮气都是气体。
• The zirconium can react with water to produce zirconium oxide and hydrogen.
  锆可以和水反应，产生氧化锆和氢气。
• 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。