一个世纪前，亨利·卡文迪什注意到当空气中的氧气和氮气被除去，还有其他剩余气体存在，但人们还没有认识到它们的重要性。
A century earlier, Henry Cavendish had noted the existence of a residual gas when oxygen and nitrogen are removed from air, but its importance had not been realized.
气体，温度是T，我们有氮气。
让我们看看此原理是否适用氮气。
树木也依赖于氮气才能生长。
而最棒的氮气大餐来自于喜苔类细菌。
And the best buffet of nitrogen comes from moss-loving bacteria.
对于氮气我们知道什么？
大气中也主要是氮气。
厚厚的氮气组成的大气层你弥漫着烟雾和云。
The thick nitrogen atmosphere holds fog, mist, smoggy haze and rain clouds.
此外，C4植物对水和氮气的需要量也较少。
氮气会经过燃烧室。
通过氮气进行降温的瞬间。
氮气从空气中被去除，使得燃料能够在纯氧中燃烧。
Nitrogen is removed from the air, enabling the fuel to burn in pure oxygen.
我们了解氮气中有多重键，我们看看氮气。
We know nitrogen bonds multiple bonds, so let's look at nitrogen.
这是氮原子，这是氮原子，然后这是氮气的分子轨道。
Here is the atomic nitrogen, here is the atomic nitrogen and these are the orbitals of molecular nitrogen.
试一下氮气。
拿一点氮气。
尽管你认为那是氮气，我的意思是，它是一种惰性气体。
And, although you think that nitrogen, I mean, it's an inert gas.
这颗行星有相对较薄的大气层，主要由氮气和氧气组成。
The planet has a relatively thin atmosphere composed mostly of nitrogen and oxygen.
我们接下来会问一些问题，我们有氮气，氢气，把它们混合。
And we're going to ask the question, so I take nitrogen, I take some, hydrogen, I mix them together in a container.
问题是如何处置氧化氮副产品，这对环境污染远比氮气更严重。
The problem has been how to dispose of the nitrous oxide byproduct, which is far worse for the environment than nitrogen.
但是通过加入氮气和铜，会改变二氧化钛在可见光下的催化活性。
But adding nitrogen and copper to the mix shifts the preference of the titania tubes to visible light, Grimes says.
我想问，当达到平衡后，氮气，氢气和氨气的分压，分别是多少？
And I'm going to ask, after I reach equilibrium, what is the partial pressure of nitrogen hydrogen and ammonia?
工厂生产氧气，氮气等气体，他们采用德国技术，并聘请德国员工。
Gases such as oxygen, nitrogen, etc are produced at the plant.They use a German technology and will hire German employees as well.
工厂生产氧气，氮气等气体，他们采用德国技术，并聘请德国员工。
Gases such as oxygen, nitrogen, etc are produced at the plant. They use a German technology and will hire German employees as well.
然而充氮气的气球定期的发动它的动力装置升高到平流层。
Although helium-filled weather balloons regularly launch instruments high into the stratosphere.
如果燃烧室的温度足够高的话，实际上在氮气和氧气之间，会发生一些反应。
Well, if you get the combustion chamber hot enough, in point of fact, there are some reactions between nitrogen and the oxygen.
有些农田被牲口过度放牧亏损，暴雨淹没了田地，缺乏氮气造成玉米的秆子矮小。
Heavy rains flooded the land. A lack of nitrogen in the soil made the corn stalks puny.
表面活性剂本身燃烧时除了生成水、二氧化碳和氮气之外，不会生成其他的排放物。
The surfactant itself also burns without creating emissions beyond water, carbon dioxide and nitrogen.
表面活性剂本身燃烧时除了生成水、二氧化碳和氮气之外，不会生成其他的排放物。
The surfactant itself also burns without creating emissions beyond water, carbon dioxide and nitrogen.
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