nitrogen

美音：['naɪtrədʒən] 英音：['naɪtrədʒ(ə)n]

简单释义：

n.氮；氮气

网络液氮；含氮；氮含量

完整释义：

1.【化学】氮,氮气

例句：

In areas of poor soils, within two years of cultivation, synthetic nitrogen and mineral fertilizers have to be applied heavily.
在土壤养分贫乏的地区，经过两年内的种植后就必须很大量应用合成氮肥与矿物肥料。
The best form of usable nitrogen seems to be a combination of di-ammonium phosphate (DAP) and yeast extract.
最好的方式，似乎是一种可用氮结合荻磷铵（磷酸二铵）、酵母粉。
X-ray photoelectron spectroscopy (XPS) shows that the reason is the increase of oxygen and nitrogen polar functional groups on the surface.
射线光电子能谱（XPS）分析表明，这是由于涤纶表面被引入了大量含氧和含氮极性基团所致。
Corn is one of the best indicators for nitrogen deficiency among the field-crop plants.
玉米是大多数大田作物中缺氮的最好的指示植物。
Purine: Any of a class of heterocyclic compounds with a two-ring structure composed of carbon and nitrogen atoms.
嘌呤是对由碳、氮原子组成的双环结构的杂环化合物的统称。
The concentrations of nitrogen dioxide and ozone also exceed the objectives for a few days in a year.
二氧化氮及臭氧的浓度，每年也有几天超出了空气质素指标。
Placed within a stainless steel chamber vacuum tube from the front of the vacuum tube vacuum, or back-end exhaust into nitrogen.
炉膛内安置有不锈钢真空管，从真空管前端抽真空，后端排气或进氮气。
Results: There was no significant difference of every-day intake of calories and nitrogen between the two groups.
两组患者日均热卡及氮摄入量比较差异无统计学意义，营养支持耐受性好。

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