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- Two of the most serious air pollutants are oxides of sulfur and of nitrogen. 最严重的两种大气污染物是硫和氨的氧化物。
- The oxides of nitrogen can have deleterious effects on materials, vegetation, and animal and human life. 氮的氧化物对物质、植物、动物和人类生活有毒害效应。
- It will also combine with oxygen to form oxides of nitrogen and, when combined with hydrogen in the presence of catalysts, will form ammonia. 它还会同氧反应生成氮的氧化物，而且当在有催化剂存在时它会同氢反应生成氨。
- During the combustion process of coal, the nitrogen element in coal may turn to various oxides of nitrogen, thereby, resulting in ambient pollution. 煤中氮元素在煤燃烧过程中会转化为各种氮的氧化物,从而造成环境污染。
- Condensed phosphates for industrial use (including foodstuffs). Determination of oxides of nitrogen content. 3,4-xylenol spectrophotometric method. 1979工业浓磷酸（包括食品工业）.;氧化氯含量的测定
- Catalytic converters reduce carbon monoxide,oxides of nitrogen,and volatile organic compounds in emissions and necessitated the use of lead-free fuel. 催化转炉减少了一氧化碳，氧化氮和挥发性有机混合物等的排放，而且无铅燃料的应用也当成为必要。
- The research has shown that diesel engine operated satisfactorily on vegetable oil,and can effectively reduce emissions of oxides of nitrogen and bosch smoke. 试验结果表明，柴油机燃用植物油的燃烧性能正常，并能有效地降低柴油机NOx和烟度的排放
- Among the common toxic gases are sulfur dioxide, methane, the oxides of nitrogen, ammonia, hydrogen sulfide, and hydrogen cyanide; and (most commonly) carbon monoxide. 常见的有毒气体有二氧化硫、甲烷、氧化氮、氨、硫化氢、氰化氢以及最常见的一氧化碳。
- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- A conclusion was achieved that diesel engine operated satisfactorily on vegetableoil without apparently suffering from the low cetane number of this fuel, and emulsification withwater can effectively reduce emissions of oxides of nitrogen and Bosch smoke. 试验结果表明，柴油机燃用植物油能正常运转，不受低16烷值的影响，对其掺水燃烧的乳化作用能有效地降低氮氧化合物与波许烟度值的排放。
- The research has shown that diesel engine operated satisfactorily on vegetable oils without apparently suffering from the low cetane number of these fuels, and can effectively reduce emissions of oxides of nitrogen and bosch smoke. 试验结果表明，柴油机燃用植物油运转性能正常，没有受到低十六烷值的影响，并能有效地降低柴油机主要有害排放物NOx的排放和烟度
- Emissions of oxides of nitrogen (NOx) from combustion devices is a topic of tremendous current importance.The bulk of the review of NOx emissions has been in the field of turbulent jet flames. 贫油燃烧符合节能低污染的能源利用方式，但是贫油预混火焰不像扩散火焰有较大的操作区间，当量比过低后火焰也无法稳驻。
- The main reservoir of nitrogen is the atmosphere. 氮的主要蓄存库是大气层。
- methods for determination of oxides of nitrogen in flue gases 废气中氧化氮含量的测定
- What is the percentage of nitrogen in air? 空气中所含的氮的比例是多少?
- The crux of the matter was a lack of nitrogen. 问题的关键在于缺少氮。
- The method also applies to the binary oxides of subgroup elements. 新方法可标度周期表中二元氧化物的光学碱度。
- Among the blue-green algae are many species of nitrogen fixation. 许多种蓝藻有固氮的能力。
- Urea is commonly used as the source of nitrogen in foliage sprays. 尿素作为氮素给源普遍地应用于叶面喷布。
- Has an atmosphere, which is mainly made up of nitrogen. 它拥有主要由氮组成的大气。
