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

• Hydrogen combines chemically with oxygen to form water.
  氢和氧化合成为水。
• Water is composed of hydrogen and oxygen.
  水由氢与氧化合而成。
• The classification, characteristics and current situation for method and technology of aluminum melt hydrogen removal has been summarized.
  概述了铝熔体除氢方法和技术的分类、特点和发展现状，并对其发展趋势进行了展望。
• Catalase catalyes the breakdown of hydrogen peroxide.
  过氧化氢酶催化过氧化氢的分解。
• And now I have to fill this molecular hydrogen.
  现在我填充了分子氢。
• Catagensis is marked by a loss of hydrogen, and consequently by a decrease of the h/ c ratio.
  后生阶段以氢减少必然导致h／d比率降低为特征。
• Water is made up of atoms of hydrogen and oxygen.
  水由氢和氧的原子构成。
• Hydrogen and oxygen are the constituents of water.
  氢和氧是水的主要成分。
• 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。
• It has studied the action of hydrogen peroxide on nitrous acid.
  它研究了过氧化氢对亚硝酸的作用。