氮 (dàn) — nitrogen

定義

例文

• 氮是空气中含量最多的气体。
  dàn Shì kōng qì zhōng hán liàng zuì duō de qì tǐ.
  Nitrogen is the most abundant gas in the air.
• 这种肥料含有丰富的氮。
  Zhè zhǒng féi liào hán yǒu fēng fù de dàn.
  This fertilizer is rich in nitrogen.
• 氮在工业上常用于制造氨。
  dàn Zài gōng yè shàng cháng yòng yú zhì zào ān.
  Nitrogen is often used in industry to produce ammonia.