利用介质阻挡放电，在自行研制的设备上进行常压非平衡等离子体渗氮的研究。
By using medium to stop discharging, the non-equilibrium plasma nitriding under normal pressure can be made in self developed equipment.
如今，研究人员为人们提供了一种测量个人产生的氮污染量的办法——他们的氮足迹。
Now, researchers have a way for people to measure how much nitrogen pollution they produce—their nitrogen footprint.
研究了重氮烯氢向前手性烯烃单侧的非对映选择性转移。
Diastereoselective transfer of the diazene hydrogen to one face of the prochiral alkene was studied.
研究组和对照组所接受的氮量和热卡相同。
Study group and control group had isonitrogenous and isocaloric intake.
周日发表的一项研究显示北极永冻土壤解冻可以释放出氧化亚氮，俗称笑气。 这种温室气体对气候变化的贡献一般为世人所忽视。
OSLO (Reuters) - Thawing permafrost can release nitrous oxide, also known as laughing gas, a contributor to climate change that has been largely overlooked in the Arctic, a study showed on Sunday.
如今，研究人员为人们提供了一种衡量个人产生的氮污染量的办法——氮足迹。
Now, researchers have a way for people to measure how much nitrogen pollution they produce — their nitrogen footprint.
该研究还补充道，畜牧业是导致氮污染的最大元凶之一。
Livestock farming is one of the biggest causes of nitrogen pollution, it adds.
减少污水处理设施的氮污染是一项对企业、环境三赢的举措，《环境科学与技术》刊登的一项研究得出结论。
Reducing nitrogen pollution from wastewater treatment plants could be a triple win for business as well the environment, concluded a study published in Environmental Science & Technology.
一项最新研究表明生物炭对诸如一氧化二氮、笑气之类由农业生产造成的温室气体排放可能会产生影响，这些气体的排放对气候变化来说可不是什么好事。
And a new study shows that biochar could have an impact on agriculture's other greenhouse gas emission: nitrous oxide, or laughing gas, which is no laughing matter when it comes to climate change.
这项由200位欧洲专家完成的研究表示，活性氮会导致空气污染，刺激气候变化，并预估将居民的平均寿命缩短六个月。
The study by 200 European experts says reactive nitrogen contributes to air pollution, fuels climate change and is estimated to shorten the life of the average resident by six months.
研究显示，在消除有机化合物和氮含量方面，该设备与传统机械处理设施的处理能力相当。
A study showed the devices are on par with traditional mechanical treatment facilities for removing organic compounds and nitrogen.
两位研究人员考虑了全球畜牧业生产的三个方面：温室气体排放，生物质消耗和氮排放。
The pair considered three aspects of global livestock production: greenhouse gas emissions, biomass consumption and nitrogen emissions.
但是研究者发现角质蛋白复合物的化学键保留的很少。 富氮层在两个化石上都有所发现。
But the researchers found chemical-bond fingerprints of chitin-protein complex in thin, nitrogen-rich layers in both fossils.
铂尔曼教授还表示，他希望看到更多的研究，以明确添氮汽油的使用到底会产生多少氮氧化物。
Professor Boehman would like to see more research done so we can know for sure if (and how much) additional NOx pollution is caused by the use of nitrogen-enriched gasoline.
不过这一最新的研究发现，太阳风当中的氧和氮同位素比例与地球、月球或火星上的比例不同。
But the new study shows that the ratio of oxygen and nitrogen isotopes found in the solar wind is different from the ratio here on earth, or on the moon or Mars.
研究人员称，解决氮污染的花费要远超于氮给我们带来的效益。
The researchers said that the cost of putting in measures to tackle the problems of nitrogen pollution would be outweighed by the financial benefits the solutions would reap.
研究表明，水质43.7%的化学需氧量(测量水质有机化合物的主要指标)、67%的含磷量和57%含氮量应归咎于农业。
According to the study agriculture is responsible for 43.7% of the nation's chemical oxygen demand (the main measure of organic compounds in water) 67% of phosphorus and 57% of nitrogen discharges.
研究表明，水质43.7%的国家化学需氧量(测量水质有机化合物的主要指标)、67%的含磷量和57%含氮量应归咎于农业。
According to the study, agriculture is responsible for 43.7% of the nation's chemical oxygen demand (the main measure of organic compounds in water), 67% of phosphorus and 57% of nitrogen discharges.
然后，他们计算了每组食品的潜在富营养化状态，用2008年一项著名研究的数据，对这些食物从农场到餐桌的氮足迹与碳足迹加以比较(环境。科学。技术。，2008,42,3508)。
They then calculated the eutrophication potential of each food group and compared these farm-to-table nitrogen footprints to carbon footprints, using data from a well-known 2008 study Environ. Sci.
运用二因素五水平回归正交旋转组合设计，进行施氮量与密度对油菜产量影响的研究。
Using quadratic rotational regression combination design to study the influence on yield of the rape under the different nitrogen and density.
研究了在不同气氛下进行离子渗氮对TC 4钛合金渗氮层的组织与性能的影响。
The effect of the atmosphere on the structure and properties of ion nitriding layer of alloy TC4 was investigated.
研究结果说明，氮元素对玉米大斑病菌的生长和发育有非常重要的作用。
It was proved that nitrogen played an important role on the growth and development of the corn pathogen.
但他表示，这项研究发现，河流系统中的含氮量如此之高，根本无法被完全过滤掉。
But he says the study found that there is so much nitrogen in the river system that is simply can not filter all of it.
烟草是中国一种重要的经济作物，而氮是植物必需的矿质养分，研究烟草碳氮代谢规律，对指导烟草的生产具有重要的作用。
Tobacco is an important economic crop, and nitrogen is essential mineral element. Studies on carbon and nitrogenous metabolism of tobacco have important action on tobacco production.
烟气脱氮技术的研究已成为目前大气污染控制中的一个热点课题。
The research on NOX removal from flue gas is becoming a hot issue of air pollution control presently.
采用田间试验研究氮肥用量对高淀粉玉米和普通玉米吸氮特性及子粒品质产量的影响。
Field experiment was carried out to investigated nitrogen absorption, quality and yield between high-starch and common com as affected by nitrogen application.
采用田间试验研究氮肥用量对高淀粉玉米和普通玉米吸氮特性及子粒品质产量的影响。
Field experiment was carried out to investigated nitrogen absorption, quality and yield between high-starch and common com as affected by nitrogen application.
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