Too much fertilizer causes the soil to release nitrogen gas.

过多的肥料会导致土壤释放氮气。

And also, you don't see any nitrogen gas emitted from these pastures.

它也不会释放任何氮气。

This traps the cold nitrogen gas causing it to expand, which can cause burns and internal rupturing.

氮气在体内聚积，将导致内脏烧伤和破裂。

Under the right conditions it reacts with hydrogen gas to produce nitrogen gas and water.

在合适的条件下，它与氢气反应生成氮气和水。

New Horizons captured this great silhouette showing Pluto's thin atmosphere of mostly nitrogen gas.

New Horizo​​ns 捕捉到了这个巨大的剪影，展示了冥王星主要由氮气组成的稀薄大气层。

198. The earth atmosphere is mostly composed of oxygen and nitrogen gases.

地球大气层主要由氧气和氮气组成。

As the name implies, it's the liquid form of nitrogen gas, a colorless, odorless gas that makes up about 78% of our atmosphere.

顾名思义，液氮就是液态的氮气，一种无色无味的气体，占大气约78％。

What they actually measure is changes in the ratio of O2 to N2, because nitrogen gas levels stay pretty constant.

他们实际测量的是 O2 与 N2 之比的变化，因为氮气含量保持相当恒定。

The US state of Alabama has put convicted murderer Kenneth Smith to death with nitrogen gas in the first known execution of its kind.

美国阿拉巴马州用氮气处死杀人犯肯尼斯·史密斯，这是世界已知的首例此类处决。

Then other bacteria fix that nitrogen gas back into food chains—on land and in the ocean—where it eventually finds its way into amino acids.

然后其它细菌再将氮气送回陆地及海洋的食物链中，至此它最终形成氨基酸。

Earth’s atmosphere is actually around 80% nitrogen, and we also figured out how to convert this nitrogen gas directly into a form that’s chemically useful for fertilizing crops.

地球大气层实际上含有大约 80% 的氮气，我们还想出了如何将这种氮气直接转化为一种对农作物施肥有用的化学形式。

Here step two is the slow one and no matter how fast you take the first step, the water product can never be produced until the nitrogen gas is.

这里的第二步是缓慢的一步，无论你采取多快的第一步，在氮气产生之前，水产品永远不会产生。

For example, once the Haber reaction is at equilibrium if you were to add more nitrogen gas to the mix the existing hydrogen would have more nitrogen to react with.

例如，一旦 Haber 反应达到平衡，如果向混合物中添加更多的氮气，现有的氢气就会有更多的氮气与之反应。

If it wasn't there, ships would absorb humidity and basically Rod, that shiny film is also great at containing the nitrogen gas that's puffed into the bags before it's sealed.

如果没有它，船舶就会吸收湿气，基本上罗德，那张闪亮的薄膜也非常适合容纳密封前吹入袋子的氮气。