转换区不断清除最好的惰性气体，如氮。
The conversion zone is continuously purged, preferably with an inert gas such as nitrogen.
对设备抽真空，然后充入不活泼气体，如氮。
Evacuate the equipment and break vacuum with an inert gas, such as nitrogen.
沥青基原油含较高比例的非烃组分，如氮、硫、氧的化合物。
An asphalt-base crude is one containing a relatively high proportion of nonhydrocarbon constituents such as nitrogen, sulfur, and oxygen compounds.
另外，高压惰性气体如氮在加热气化单元，然后用干煤饲料。
Alternatively, high-pressure inert gas such as nitrogen is heated in the gasification unit and is then used to dry the coal feed.
低纬度地区的营养物污染，如氮污染，可能会漂向北部，促进北极藻类的生长。
Nutrient pollution, such as nitrogen pollution, from lower latitudes may float north and promote algal growth in the Arctic.
在断开系统的任何连接之前，推荐用干燥惰性气体，如氮或氩来净化气体系统。
Purging of the gas systems with a dry, inert gas such as nitrogen or argon, is recommended prior to breaking any connection of the gas system.
第三种是某些基本的化学物质，如碳、氧和氮。
A third is certain basic chemicals such as carbon, oxygen and nitrogen.
化肥和粪肥都释放氮到自然生态系统，如河流，从而破坏自然的平衡。
Both fertilizers and manure release nitrogen into natural systems such as rivers, upsetting the natural balance.
对一些造成气候变化的气体，如甲烷和氧化亚氮(一氧化氮，笑气)，来说，情况确实如此。
That's the case for some of the gases that contribute to climate change, such as methane and nitrous oxide.
月球的土壤(风化层)含有铁、铝、钙、硅、钛和氧等元素，此外还发现有大量较轻元素如碳、硫和氮等。
The lunar soil (regolith) contains iron, aluminum, calcium, silicon, titanium, and oxygen, as well as trace amounts of lighter elements such as carbon, sulfur, and nitrogen.
他们发现，溪流中一氧化二氮的数量与人类活动释放到环境中的氮有关，如使用化肥和污水排放。
They found that the amount of nitrous oxide produced in streams is related to human activities that release nitrogen into the environment, such as fertilizer use and sewage discharges.
这些燃烧过程同样释放化学物质如甲烷、氮氧化合物、挥发性的有机化合物和一氧化碳在光照下反应形成臭氧。
These same processes also release chemicals that combine in sunlight to form ozone: methane, nitrogen oxides, volatile organic compounds, and carbon monoxide.
但是，全球温室气体排放实际上有相当一部分是其他气体，如N2O(一氧化二氮)和CH4(甲烷)。
But a large proportion of global greenhouse gas emissions are actually other gases, such as N2O (nitrous oxide) and CH4 (methane).
如果采用传统技术如轮作和堆肥为土壤补充氮和其他物质，就需要耕地也增长三倍了。
Using traditional techniques such as crop rotation, compost and manure to supply the soil with nitrogen and other minerals would have required a tripling of the area under cultivation.
其它气体，如甲烷、一氧化二氮等，尽管没有像二氧化碳那样严重的影响气候，但他们依然在加剧全球变暖。
Many other gases, such as methane and nitrous oxide, contribute to warming, although not as much as carbon dioxide.
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。
For example, manganese plays an important role in numerous processes in plants, such as photosynthesis, nitrogen and carbohydrate metabolism, and defense against diseases.
氮的性质使许多应用受益，如热处理气氛、覆盖气氛、推进剂、气体力学、净化和加压以及分解运载气体。
Nitrogen's properties benefit applications such as heat treating atmospheres, blanketing atmospheres, propellants, pneumatics, purging and pressurizing, and analytical carrier gases.
另外必须提供的微生物在与含氮如硫酸铵，氨水或尿素化合物生长介质，以及与无机磷酸盐。
Additionally the microorganisms must be supplied in the growth medium with nitrogen-containing compounds such as ammonium sulfate, ammonia, or urea, as well as with inorganic phosphates.
一般情况下，氮是不活泼的的。当加热到非常高的温度时它会同更加活泼的金属，如锂和镁反应生成氮化物。
Nitrogen is inert except when heated to very high temperatures where it combines with some of the more active metals, such as lithium and magnesium, to form nitrides.
某些药物，如苯二氮类药物，这是镇静剂和安眠药。
Certain drugs such as benzodiazepines, which are tranquillisers and hypnotics.
取两个容器，它们装有体积相等的不同气体，如氢与氮，两者的温度相同。
Take two vessels containing equal volumes of different gases, say hydrogen and nitrogen, both at the same temperature.
就全球环境变化如全球变暖、大气CO2浓度升高、UV-B辐射增强、氮沉降等对凋落物分解影响的研究进展进行了综合述评。
The effects of global warming, elevated CO2, increased UV-B radiation and N deposition on litter decomposition was reviewed in this paper based on literatures.
滇池流域环境管理项目主要是针对控制或削减磷的入湖负荷及其它如COD、BOD、悬浮物、氮等污染负荷而设置的。
The Dianchi basin environment management project aims at controlling or reducing the load of phosphorous into lake and the pollution load of COD, BOD, suspended matter and Nitrogen.
在进行手术前(除急诊外)，应尝试使用药物如柳氮磺吡啶、激素、硫唑嘌呤、肿瘤坏死因子拮抗剂及反应停。
Agents such as sulfasalazine, corticosteroids, azathioprine, TNFa antagonists and thalidomide should be tried first before surgery, except in emergencies.
人类活动，如燃料燃烧、氮肥生产、固氮植物的培育和畜牧业的集约经营等是引起全球活性氮增加的主要原因。
Human activities such as fossil fuel combustion, nitrogen fertilizer production and cultivation of nitrogen fixing crops are the main sources of reactive n.
在氧化性酸，如硝酸和氮，这是没有用的。
It is not useful in oxidizing acids, such as nitric acid and nitrous.
其中一些气体，如，氮，氧，氩，氖等，作为空气的永久组成成分，总是以固定的比例存在于大气中。
Some of them, such as nitrogen, oxygen, argon, neon, and so on, may be regarded as permanent atmospheric components that remain in fixed proportions to the total gas volume.
其中一些气体，如，氮，氧，氩，氖等，作为空气的永久组成成分，总是以固定的比例存在于大气中。
Some of them, such as nitrogen, oxygen, argon, neon, and so on, may be regarded as permanent atmospheric components that remain in fixed proportions to the total gas volume.
应用推荐