nitrogen

英 [ˈnaɪtrədʒən]

美 [ˈnaɪtrədʒən]

n.  氮; 氮气

复数：nitrogens　

CET4CET6考研TOEFLIELTSTEM4TEM8化学

Collins.1 / BNC.6287 / COCA.5881

牛津词典

noun

• 氮；氮气
  a chemical element. Nitrogen is a gas that is found in large quantities in the earth's atmosphere.

柯林斯词典

• 氮;氮气
  Nitrogenis a colourless element that has no smell and is usually found as a gas. It forms about 78% of the earth's atmosphere, and is found in all living things.

英英释义

noun

• a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas
  Synonym:Natomic number 7

双语例句

• These plants need no nitrogen fertilizers and leave the soil rich in nitrogen.
  这样的植物不需要施用氮肥，并且还给土壤留下了丰富的氮。
• We destroyed the nest with liquid nitrogen.
  我们用液态氮摧毁了那个窝。
• Choose a fertilizer that contains nitrogen, phosphorus, and potassium.
  选择含有氮，磷和钾的肥料。
• Researchers also blamed exposure to nitrogen dioxide, carbon monoxide and particulates for the increase.
  研究人员还指责了二氧化氮，一氧化碳和颗粒物的增加问题。
• Removal of Phosphate and Ammonia Nitrogen from Hogpen Wastewater by Steel Slag and Zeolite
  钢渣和沸石去除猪场废水中的磷酸盐和氨氮
• Combustion at high temperature causes decomposition to nitrogen and water.
  氨在高温下燃烧分解成为氮和水。
• The faeces contain nitrogen and it is that which fertilises the desert soil.
  粪便含氮，而正是氮可以肥化荒芜的土地。
• Both phosphorus and nitrogen are key nutrients for living organisms.
  磷和氮都是活组织生长的关键营养物质。
• Carbohydrate is found in sugar, Organic carbon and total nitrogen in bed load had enrichment phenomenon.
  碳水化合物富含于糖推移质中有机碳和全氮均有富集现象。
• Among the common toxic gases are sulfur dioxide, methane, the oxides of nitrogen, ammonia, hydrogen sulfide, and hydrogen cyanide; and ( most commonly) carbon monoxide.
  常见的有毒气体有二氧化硫、甲烷、氧化氮、氨、硫化氢、氰化氢以及最常见的一氧化碳。