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

• The plant requires nitrogen in order to make proteins.
  植物需要氮以便制造蛋白质。
• Combustion at high temperature causes decomposition to nitrogen and water.
  氨在高温下燃烧分解成为氮和水。
• 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。
• The experiment method of the measurement nanoparticles specific surface areas by the nitrogen adsorption method is investigated.
  本文研究了用氮吸附法测定纳米粒子比表面积的实验方法。
• The scientists then compared how much nitrogen and phosphorus were available in the soil.
  科学家然后比较土壤里有多少氮和磷元素吸收了。
• 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
• The consumption of the carbon, nitrogen and phosphate acid closely correlated with the crocin synthesis.
  碳源、源和磷酸的消耗与藏红花素的合成密切相关。
• Sulfur dioxide and nitrogen oxides are the main gas emissions of the smoke and waste gas.
  二氧化硫和氮氧化物是烟气的主要气体排放物。
• ■ Five basic elements: carbon, oxygen, hydrogen, phosphorus and nitrogen.
  ■五种基本元素：碳、氧、氢、磷和氮。
• The removal rates of ammonia nitrogen, denitrification ability and anammox ability were investigated in three bioreactors.
  探讨了序批式生物反应器填埋场的氨氮去除率、反硝化能力以及厌氧氨氧化能力。