nitrogen [ˈnaɪtrədʒən]

例句:

• The atmosphere consist of more than 70 % of nitrogen.
  大气中含有70%以上的氮气.
  来自《简明英汉词典》
• Every tonne of coal contains, on average, 30 kilograms of nitrogen.
  每吨煤平均含30公斤氮.
  
• The plant requires nitrogen in order to make proteins.
  植物需要氮以便制造蛋白质.
  
• It relies on burning the sample to release nitrogen.
  来自SA
• Isn't there enough nitrogen already in the water?
  来自SA
• I mention the distinguished guest who drank liquid nitrogen?
  来自THETIMES
• Nitrogen is a gas without color or smell.
  氮是一种无色无臭的气体。
  来自《权威词典》