飞行中巡航部分的氮氧化物的排放量下降了四分之一左右。
Nitrogen-oxide emissions during the cruising portions of the flight fell by around a quarter.
超过一半的美国煤炭发电机缺乏二次燃烧氮氧化物污染控制。
More than half of U.S. coal generators lack postcombustion NOx pollution controls.
这样不仅仅得到的水蒸气，但是你会得到一些氮氧化物，或者如大家所知到的nox，这是烟雾的前驱体。
And so, you make not only water vapor, nox but you make some nitrous oxides, nox, or nox as it is known, and this is the precursor to smog.
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。
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.
桑顿说：“由于这些影响，我们想知道夜间空气中的这些氮氧化物发生什么变化，到那里去，会有什么影响。”
"Because of these impacts, we'd like to know what happens to these nitrogen oxides in nighttime air, where do they go, what do they do," Thornton said.
但是，尽管它在农场的氮氧化物和甲烷。
另一种氮污染的来源为矿物燃料，矿物燃料燃烧时，会产生氮氧化物。
Another source of nitrogen pollution comes from fossil fuels, which produce nitrogen oxides when they are burnt.
他说，“尤其要注意氮氧化物”，因为它们可以破坏臭氧层。
"Nitrogen oxides in particular are of concern," he says, because they can destroy ozone.
该团队认为，不必把氮氧化物清除掉，而是利用它作为催化剂，促进化学反应的进程。
Instead of getting rid of the NOx the team believe they can use it as a catalyst to help power the reaction.
问：既然氮氧化物是烟尘成分的一种，也是常见的水污染物，那加氮汽油会不会产生额外的污染呢？
Q: Since nitrogen oxide compounds are components of smog and are common water pollutants, does nitrogen-enriched gasoline create additional pollution?
既然氮氧化物是烟尘成分的一种，也是常见的水污染物，那加氮汽油会不会产生额外的污染呢？
Since nitrogen oxide compounds are components of smog and are common water pollutants, does nitrogen-enriched gasoline create additional pollution?
与之相反，新的研究包括全部范围的污染物，包括二氧化硫，氮氧化物和水蒸汽。
Instead, the new study included a full range of pollutants, including sulfur dioxide, nitrogen oxide and water vapor.
而且，比这更糟的是，氮氧化物属于一种有毒的污染物，清除它需要付出很高的成本。
And if that wasn t bad enough NOx is a poisonous pollutant that it takes a lot of effort to remove.
其他温室效应气体的排放，比如由动物排放的氮氧化物和甲烷，只要是适用的，都要考虑进去。
Where appropriate, emissions of other greenhouse gases, such as nitrous-oxide from soils and methane emissions from animals, are also taken into account.
根据飞机大小的不同，单程航线燃烧的燃料产生8 - 50千克的氮氧化物，以及二氧化碳、一氧化碳和硫氧化物。
Depending on the size of the aircraft, the burning of fuel during a single flight produces between 8-50kg of nitrogen oxide as well as carbon dioxide, carbon monoxide and sulphur oxide.
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。
In the lower atmosphere the oxides of nitrogen add to an increase in ozone and small particles, which can cause respiratory ailments.
对于矿物燃料燃烧时氮氧化物的清除，在科技上和成本上都是可行的。
Existing technology can remove nitrogen oxides when fossil fuels burn, at a cost.
畜牧业产生的温室效应气体，大部分由甲烷沼气和动物肠内发酵及粪尿处理产生的氮氧化物，总量占到人为产生温室气体的18%。
The greenhouse gas figure equates to 18% of man-made greenhouse gas emissions, largely thanks to the methane and nitrous oxide animals' "enteric fermentation".
研究者说，糖的摄入提高血尿酸水平，降低氮氧化物水平，这个化合物可扩张血管降低血压。
Sugar consumption increases serum levels of uric acid, which may lower the levels of nitric oxide, a chemical that is needed to dilate the blood vessels to keep the pressure low, the researchers said.
在高温高压下，空气与氧气反应，产生了氮氧化物。
NOx is produced when the nitrogen from the air reacts with oxygen under high engine temperature and pressure conditions.
通过燃烧矿物发电的火力发电厂会释放碳氢化合物和氮氧化物。
Electric power plants that burn fossil fuels release hydrocarbons and nitrogen oxides.
黑碳并不是单独被排放的，它被排放的同时还混合了许多别的物质——比如，有机分子还有各种各样的硫氧化物和氮氧化物。
Black carbon is not emitted alone, but mixed with other things-organic molecules and various oxides of sulphur and nitrogen.
以新西兰为例：该国拥有3400万只羊、970万头牛、140万鹿以及15.5万山羊，这些动物所排放的温室气体占据整个国家温室气体的48%，主要成分是甲烷、氮氧化物。
Take New Zealand where 34.2 million sheep 9.7 million cattle 1.4 million deer and 155 000 goats emit 48 per cent of the country's greenhouse gases in the form of methane and nitrous oxide.
氮氧化物(一氧化二氮)是一种比二氧化碳强300倍的温室气体。
Nitrous oxide (N2O) is a greenhouse gas 300 times more potent than carbon dioxide.
这项研究集中于只在夜间出现的一种氮氧化物的具体形式，这种氮氧化物在白天即使阳光极微弱也会被分解。
The research focuses on a specific form of nitrogen oxides present only at night — during the day it is broken down by even the faintest sunlight.
这项研究集中于只在夜间出现的一种氮氧化物的具体形式，这种氮氧化物在白天即使阳光极微弱也会被分解。
The research focuses on a specific form of nitrogen oxides present only at night — during the day it is broken down by even the faintest sunlight.
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