The poor soil of bogs, for example, offers little nitrogen and phosphorus, so carnivorous plants enjoy an advantage over plants that obtain these nutrients by more conventional means.
例如，沼泽贫瘠的土壤提供的氮和磷很少，所以肉食植物比那些通过更传统的方式获得这些营养的植物更有优势。
An asphyxiating mixture of gases, primarily nitrogen and carbon dioxide, left in a mine after a fire or an explosion.
爆后废气火灾或爆炸后，残留在矿井中的一种令人窒息的混合气体，主要含氮气和二氧化碳。
Nature's Green Cleaner Air-dried algae (shown above) from an algal turf scrubber captured most of the nitrogen and phosphorus in the manure.
图中展示的是从藻床中取下的自然绿色海藻，海藻可以有效地分离出水源中的氮和磷，用完之后自身转化为有机肥料还可以进一步利用。
So, if we took the case of nitrogen, if we add an electron to nitrogen and go to n minus, we find that the change in energy is 7 kilojoules per mole.
如果我们以氮为例，如果我们给氮增加个电子令它变成-1价的氮，我们会发现能量的变化是，7，千焦每摩尔。
In the process, the particles collide with atoms of nitrogen and oxygen in the Earth's atmosphere, which then glow, creating an effect similar to miniature neon signs.
在这个过程中，太阳粒子会同地球大气中的氮原子和氧原子撞击并发出光芒，从而制造出类似于微型霓虹灯效果的极光。
For example, manganese plays an important role in numerous processes in plants, such as photosynthesis, nitrogen and carbohydrate metabolism, and defense against diseases.
例如，锰对作物中无数过程有重要作用，如光合作用、氮和碳水化合物新陈代谢，以及抵抗病害。
You said that the nitrogen cycle is also an important nutrient cycle.
你说了，氮循环也是一个重要的营养循环。
Although the proportion of new cars in Donia's capital city has always been comparatively high, nitrogen dioxide emissions there have shown only an insignificant decline since 1993.
尽管在Donia的首都城市，新车的比例一直相对较高，那里的二氧化氮排放量自1993年以来仅略有下降。
"If the atmosphere filled up with nitrogen, mankind would not survive," she continued, as we inspected an extinct species of bird. "that does not mean that mankind deserved to die."
“如果大气中充满氮气时，人类是无法生存的，”当我们在考察一个灭绝的鸟类物种的时候，她接着说：“这并不意味着人类该死。”
So this means nitrogen has low electron affinity, it doesn't actually want to gain an electron.
这意味着氮的电子亲和能很低，它实际上并不愿意得到一个电子。
But sometimes a cosmic ray will collide with a nitrogen atom, giving it an extra neutron.
但有时宇宙射线会撞击氮原子，赋予它一个额外的中子。
There, in a process called denitrification, microbes convert the nitrogen into nitrous oxide (also called laughing gas) and an inert gas called dinitrogen.
在那里，经称为脱氮的过程，微生物把氮转化为一氧化二氮(又称笑气)和一种称为二氮的惰性气体。
Nitrogen, which, makes up about 78% of the Earth's atmosphere, is an inert gas but it has more reactive forms.
虽然组成地球大气78%的氮是一种惰性气体，但它却有多种化学式。
When a nitrogen atom sits next to a vacant spot in the carbon crystal, the intruding element provides an extra electron that moves into the hole.
当氮原子与碳晶体中的空心点相邻时，氮元素会产生特定的电子，这些电子可以移动到那个空心点里。
Details to be revealed, but there is likely to be an expansion of the pollutant targets to include nitrogen oxide, ammonia and, possibly, PM2.5 small particulate matter.
细节还有待发布，但是扩大后的污染物治理目标可能会将二氧化氮、氨和PM 2.5包括进去。
This week Dr Townsend, and others involved in something called the international Nitrogen Initiative, are meeting in Paris to try to organise an international assessment of what is going on.
本周，汤森德教授和“国际氮倡议”(the International Nitrogen Initiative)等人士正在巴黎举行会议，试图整合目前进行中的一项国际氮气评估。
It creates an enzyme called vanadium nitrogenase, which produces ammonia from nitrogen.
这些作物都能产生一种名为钒固氮(vanadium nitrogenase)的酶，它具有把氮转变成氨的能力。
During the nights, not only were the concentrations of ozone, nitrogen oxides and other gases measured by this plane, but also, almost as an afterthought, the intensity of the light from below.
在夜晚，这架飞机不但检测臭氧、氮氧化物和其他气体的浓度，还测量了飞机下的光照强度，而这项测量差不多是后追加上的项目。
But the nitrogen in the air was replaced with a nitrogen atom with a different number of neutrons, called an isotope.
但是空气中的氮气中的氮原子却会被一个叫做同位素的有着不同数量中子的氮原子所替换。
Dennis Lindsay still recalls the day four decades ago when his father, an Iowa farmer, began using nitrogen fertilizer on the family's 160 acres.
丹尼·斯林德赛仍然记得四十年前的那一天，他父亲，一位爱荷华州农民，第一次在家160英亩地中使用氮肥。
He proposes that for bacteria living in a dry environment, where molecules could not easily diffuse between colonies, airborne ammonia could serve as an important indicator of nitrogen sources.
他认为，对于身处干燥环境中的细菌来说，分子不易在菌落之间进行扩散，而空气中的氨就可以作为一重要的营养源的指示信息。
The nitrogen itself also has a direct cleaning effect, breaking down carbon deposits that can harden on an engine's moving parts.
氮本身就有直接的清洁效果，它可以分解积碳，而发动机里的这些积碳使移动零件固化而难以移动。
The danger of nitrogen-16 is an issue only for plant workers and operators because its half-life is only seven seconds.
氮16的危险只针对于核电站工人和机器操作者而存在，因为它的半衰期只有七秒钟。
This costly and vitamin-packed elixir was mixed before our eyes with liquid nitrogen, creating an instant sorbet with explosive effects on the tongue.
这昂贵和富含维生素的灵丹妙药，在端上来之前加入液氮混合，迅速形成果汁冰糕，在舌头上产生爆炸效应。
And ammonia becomes the feedstock for fertilizers, for almost anything that contains an amine in it, or a nitrogen in it.
氨是化肥的原料，和几乎所有含有胺，或氮的东西的原料。
In the lower atmosphere the oxides of nitrogen add to an increase in ozone and small particles, which can cause respiratory ailments.
在低层大气里，氮氧化物使臭氧和可以引致呼吸道疾病的微粒增加。
An electronic leak detector may find any residual traces of refrigerant or oil forced out by the increased pressure of the nitrogen.
一个电子检漏器能够发现任何由于氮气压强升高而被挤出的制冷剂或汽油残渣。
An electronic leak detector may find any residual traces of refrigerant or oil forced out by the increased pressure of the nitrogen.
一个电子检漏器能够发现任何由于氮气压强升高而被挤出的制冷剂或汽油残渣。
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