nitrogen dioxide

noun

1. 二氧化氮
   a brown poisonous gas. Nitrogen dioxide is formed when some metals are dissolved in nitric acid .

1. They are mostly sulfur dioxide and nitrogen dioxide from power plants, auto exhausts and industry.
   这些颗粒大部分是发电站、汽车尾气和工厂排出的二氧化硫和二氧化氮。
2. Roadside air pollution deteriorated significantly in Hong Kong during the first half of 2013, with levels of nitrogen dioxide jumping as much as 22% in certain parts of town.
   2013年上半年香港路边空气污染显著恶化，部分地区二氧化氮水平升幅一度达到22%的高位。
3. Researchers also blamed exposure to nitrogen dioxide, carbon monoxide and particulates for the increase.
   研究人员还指责了二氧化氮，一氧化碳和颗粒物的增加问题。
4. Increased amounts of toxic gases such as nitrogen dioxide mean there is a lower concentration of oxygen in the air we breathe, said Royal Meteorological Society chief executive Liz Bentley.
   英国皇家气象协会的执行长官利兹宾利说道，例如二氧化碳这样的有毒气体的飙升，意味着我们呼吸氧气浓度下降了。
5. Daily increases in pollution from nitrogen dioxide, sulfur dioxide, carbon monoxide and particulate matter were associated with corresponding increases in strokes and hospital admissions.
   二氧化氮、二氧化硫、一氧化碳和颗粒物污染的日增加量与中风和入院的相应增加相关。
6. Secondary pollutants produced as a result of the use of petrol-engined vehicles include nitrogen dioxide and ozone.
   二次污染物是由汽油引擎车辆产生的，包括二氧化氮和臭氧。
7. Work-place air-determination of mass concentration of nitrogen dioxide-method using detector tubes for short-term sampling with direct indication
   工作场所的空气-二氧化氮密浓度的测定-用直接指示的短期取样用检测管进行测定的方法
8. Changes in sensory perception are the most sensitive indicators of the presence of nitrogen dioxide.
   感觉的改变是二氧化氮存在的最灵敏的标志。
9. Effects of Airway Inflammation Induced by Low Level Ozone and Nitrogen Dioxide Exposure in Independent and Combined in Mice
   低浓度O3和NO2对小鼠气道炎症单独及联合作用
10. The Development of a Monitor for UDMH and Nitrogen Dioxide of High Concentration in Air
    空气中高浓度偏二甲肼和二氧化氮监测仪的研制
11. The concentration of nitrogen dioxide in Beijing's air was reduced by an average of 20 per cent.
    北京空气中二氧化氮的含量平均降低了20%。
12. "We found a link between post-menopausal breast cancer and exposure to nitrogen dioxide, which is a marker for traffic-related air pollution," said co-author Mark Goldberg in a press release.
    新研究主持人马克·戈德伯格表示，绝经后患乳腺癌的女性与暴露于二氧化氮（与交通有关的空气污染的一大指标）环境有关。
13. A passive detection tube for nitrogen dioxide gas has been developed based on the principle of the gas molecular diffusion and chemical adsorption.
    研究一种简便、快速监测二氧化氮气体的方法，即二氧化氮被动式检气管法。
14. Effect of high temperature calcination on the oxidation of nitric oxide to nitrogen dioxide over Ru/ ZrO_2 catalyst
    Ru/ZrO2催化剂高温焙烧对NO催化氧化反应性能的影响
15. Its coal-burning kilns spew out huge quantities of sooty waste and chemical compounds such as sulfur dioxide and nitrogen dioxide.
    在这里，烧煤的窑炉喷出大量的黑色废气及二氧化硫和二氧化氮等化合物。
16. Methods for determination of oxides of nitrogen in flue gases determination of nitrogen-part 2: determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescene detection
    氮含量测定-用化学发光检测法测定二氧化氮燃烧和氧化后的胶联氮含量
17. Passive diffusion tube for detecting nitrogen dioxide
    检测二氧化氮的静态扩散管
18. High outdoor levels of nitrogen dioxide apparently raise the risk of sudden infant death syndrome ( SIDS), according to California-based researchers.
    美国加州大学的研究人员日前表示，户外高浓度的二氧化氮气会增加发生婴儿猝死综合症（SIDS）的危险。
19. The concentrations of nitrogen dioxide and ozone also exceed the objectives for a few days in a year.
    二氧化氮及臭氧的浓度，每年也有几天超出了空气质素指标。
20. Fluorescence quenching method for the determination of nitrogen dioxide and nitrogen monoxide in air
    荧光猝灭法测定空气中二氧化氮和一氧化氮
21. Nitrogen dioxide and ozone may cause pulmonary edema.
    二氧化炭和臭氧可以引起肺水肿。
22. They recommend revised limits for the concentration of selected air pollutants: particulate matter ( PM), ozone ( O3), nitrogen dioxide ( NO2) and sulfur dioxide ( SO2), applicable across all WHO regions.
    它们为下述选定的空气污染物的浓度限值提出了修订：可吸入颗粒物（PM）、臭氧（O3）、二氧化氮（NO2）和二氧化硫（SO2），适用于世卫组织所有区域。
23. Such issues are drawing international concern, because Beijing's high levels of carbon monoxide and nitrogen dioxide could cause breathing problems for Olympic athletes.
    这些问题引起了全球关注。由于北京空气中的一氧化碳和二氧化氮浓度很高，会给运动员的呼吸系统带来伤害。
24. A decade ago, Beijing introduced the Blue Sky program to measure sulfur dioxide, nitrogen dioxide and PM10.
    十年前，北京开始统计蓝天天数，测量二氧化硫、二氧化氮含量和PM10。
25. The Quality Control of Nitrogen Dioxide in Absorbing Solution by Spectrophotometry
    分光光度法测定吸收液中二氧化氮的质量控制
26. The concentration of nitrogen dioxide gas could be automatically and continuously measured by the system, through program control.
    通过程序控制，该系统可以自动连续对二氧化氮气体浓度进行测量。
27. Nitrogen dioxide gas measurement system was designed and built.
    设计并建立了二氧化氮气体测量系统。
28. In the work, based on the study on molecular adsorption I have found that nitric oxide, nitrogen dioxide, formaldehyde, and carbon monoxide have great influence on the electronic structure of silicon carbide nanoribbons, after adsorption the conductivity increases significantly.
    本文通过对分子吸附的研究发现，二氧化氮、甲醛、一氧化氮和一氧化碳四种分子的吸附对碳化硅纳米带体系电子结构的影响较大，吸附后体系的导电性都有明显的增强。
29. The influence of spectrometer resolution variations on measurement of nitrogen dioxide was also studied.
    研究了光谱仪分辨率变化对二氧化氮测量的影响。

noun

1. a highly poisonous brown gas (NO2)