• 1. nitrogen group: 氮族元素
• 2. nitrogen group element: 氮族元素
• 3. nitrogen group elements: 氮族元素

更多释义

• 1.They then calculated the eutrophication potential of each food group and compared these farm-to-table nitrogen footprints to carbon footprints, using data from a well-known 2008 study Environ. Sci.
  然后，他们计算了每组食品的潜在富营养化状态，用2008年一项著名研究的数据，对这些食物从农场到餐桌的氮足迹与碳足迹加以比较(环境。科学。技术。，2008,42,3508)。
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• 2.Cytosine organic compound of the pyrimidine family often called a base consisting of a single ring containing both nitrogen and carbon atoms and an amino group.
  胞嘧啶：嘧啶族的有机化合物。常被称为基，包含一个单环，内有氮原子和碳原子，还有氨群。
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• 3.Guanine: organic compound of the purine family often called a base consisting of two rings each containing both nitrogen and carbon atoms and an amino group.
  鸟嘌呤：嘌呤类的有机化合物，常称为碱基，包含二个环，各含氮原子和碳原子，还有一个氨群。
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