nitrogen chemistry

常見例句

雙語例句

• The chemistry of the soil-the presence in it of phosphorus, nitrogen and so on-is being degraded.
  該土壤中磷，氮等化學(xué)物質(zhì)的含量也在減少。
• An aryl-replaced nitrogen heterocyclic compound preparation method belongs to the technical field of organic compound catalytic chemistry.
  一種芳基取代的氮雜環(huán)化合物的制備方法，其屬于有機(jī)化合物催化化學(xué)技 術(shù)領(lǐng)域。
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• There are many ways such as physics, chemistry, ion exchange, man-made wet land and biology etc. wastewater nitrogen removal. The biological way is used widely now.
  近年來污水脫氮主要有以下幾種基本方法：物理法、化學(xué)法、離子交換法、人工濕地法及生物法，生物法是目前應(yīng)用最廣泛的方法。

權(quán)威例句

• The fact that people have used industrial chemistry to short-circuit the nitrogen cycle, by making fertilisers out of nitrogen in the air at a rate which greatly exceeds what natural systems can manage, has real environmental effects.
  ECONOMIST: The global environment
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