hydrogen

英 [ˈhaɪdrədʒən]

美 [ˈhaɪdrədʒən]

n.  氢; 氢气

复数：hydrogens　

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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 have tested a hydrogen bomb.
  他们试验了一颗***。
• 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。
• Some balloons are filled with hydrogen, some with helium.
  有的气球是用氢气充填的，有的则用氦气。
• Water can be resolved [ decomposed] into hydrogen and oxygen.
  水可分解为氢和氧。
• Water is composed of hydrogen and oxygen.
  水由氢与氧化合而成。
• Catalase catalyes the breakdown of hydrogen peroxide.
  过氧化氢酶催化过氧化氢的分解。
• 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。
• 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。
• Hydrogen combines chemically with oxygen to form water.
  氢和氧化合成为水。
• 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。