氮气的英文：
nitrogen

Air consists chiefly of nitrogen.
空气主要由氮气组成.

Nitrogen forms about 80% of the air around the Earth.
围绕地球的大气80%是氮气。

The pulsation dampener of the rig pump has to be recharged with nitrogen.
泥浆泵震动缓冲装置需要充氮气。

Will you sunder nitrogen from air?
你能从空气中把氮气分离出来吗？

These bacteria break down nitrogen from the air into a form that legumes can use
这些细菌能把空气中的氮气分解成豆科植物可利用的形式。

Nitrogen narcosis (or nitrogen euphoria or raptures of the deep)：Effects of breathing nitrogen under increased pressure.
氮麻醉(亦称氮欣快或深水销魂):在压力增高的条件下吸入氮气所产生的生理效应。

"Helium, which dissolves less easily in body tissues, is substituted for nitrogen for deep dives. "
氦，由于其在身体组织内较不易溶解，因此在深潜时已被用来取代氮气。

Nitrogen narcosis (or nitrogen euphoria or raptures of the deep)：Effects of breathing nitrogen under increased pressure.
氮麻醉(亦称氮欣快或深水销魂):在压力增高的条件下吸入氮气所产生的生理效应。

Nitrogen as a plant nutrient is treated in a great number of publications.
人们对植物营养中的氮素研究已发表相当大量的报告。

Elemental nitrogen is a very unreactive and inert material.
元素氮是一个十分不活跃的惰性物质。

Cyanide can serve as precursor for the amide nitrogen of asparagine
氰化物可以作一个天门冬酰胺的酰胺氮前体。

There is plenty of nitrogen in the air but it cannot be absorbed directly by the plants.
空气中有大量的氮，但植物不能直接吸收。