Nitrogen dioxide is a pollutant emitted by automobiles.
二氧化氮是汽车排放的一种污染物。
Nitrogen dioxide in the smoke induces the seeds to germinate.
烟雾中的二氧化氮诱导种子发芽。
In areas with heavy automobile traffic, however, the seed germinates in the absence of fire, with automobile exhaust supplying the required nitrogen dioxide.
然而，在汽车交通繁忙的地区，种子在没有火灾的情况下借助汽车尾气提供所需的二氧化氮发芽。
Although the proportion of new cars in Donia's capital city has always been comparatively high, nitrogen dioxide emissions there have shown only an insignificant decline since 1993.
尽管在Donia的首都城市，新车的比例一直相对较高，那里的二氧化氮排放量自1993年以来仅略有下降。
Nitrogen dioxide and ozone may cause pulmonary edema.
二氧化炭和臭氧可以引起肺水肿。
They are mostly sulfur dioxide and nitrogen dioxide from power plants, auto exhausts and industry.
这些颗粒物大多为发电厂、汽车工业和汽车尾气排出的二氧化硫和二氧化氮。
The waste gases coming from burning coal, oil and petrol include sulphur dioxide and nitrogen dioxide.
煤、燃油和汽油燃烧时产生的废气中含有二氧化硫和二氧化氮。
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。
Beginning in June 2000, measurements of nitrogen dioxide were substituted into the air quality calculations in place of measurements of nitrogen oxides.
从2000年6月开始，在计算空气质量时用二氧化氮数据取代了氧化氮数据。
The plan was for OCO's measurements to be synchronised with an analysis of ozone, nitrogen dioxide, methane and other greenhouse gases by the rest of the fleet.
按照原计划，OCO将和其他五颗卫星构成链状的A字形，那五颗卫星分别用于监测臭氧、二氧化氮、甲烷以及其他的温室气体，并且在监测时间上它们与oco同步。
The lights prevent production of a particular type of nitrogen-oxide molecule known as a nitrate radical, which forms from reactions of nitrogen dioxide with ozone.
这些照明灯阻止了一种特殊类型的二氧化氮水分子——它被认为是一种硝分子团——的生成，而二氧化氮水分子则是二氧化氮和臭氧的反应物。
Diesel is highly polluting, emitting far greater amounts of dangerous nitrogen dioxide and tiny pollution particles than petrol, and can cause cancer to heart attacks.
柴油污染十分严重，其有害二氧化氮及细微污染颗粒的排放量比汽油更大，并可能导致癌症、心脏病。
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。
A new sensitive method for the determination of nitrite in the environmental water and nitrogen dioxide in the ambient air by adsorptive stripping voltammetry was ostablished.
本文研究了用吸附溶出伏安法测定环境水样中的亚硝酸根和大气中的二氧化氮。
The nitrogen dioxide (NO2) and the sulphur dioxide (SO2) is the main air pollutant and the respiratory tract infects the disease incidence rate increase to have the close relation.
二氧化氮(NO2)和二氧化硫(SO2)是主要的空气污染物与呼吸道感染发病率增加有密切关系。
"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。
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。
Compounds of nitrogen and sulphur dioxide should be particularly closely watched.
应特别密切注意氮和二氧化硫的化合物。
Carbon dioxide is like nitrogen in many ways, but if it is mixed with limewater, it causes the clear liquid to because milky, while nitrogen dose not. This is the test for carbon dioxide.
二氧化碳在许多方面类似于氮气，但如果它与石灰水混合，它就使清澈的液体变成乳状液，而氮气不能，由此可以鉴别热氧化碳。
As well as carbon dioxide, planes emit nitrogen oxide, another nasty gas.
除了二氧化碳，飞机还释放出另外一种有害气体——一氧化碳。
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.
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。
Sigman explained that by measuring algae's use of nitrogen, he can gauge how much these ancient organisms used another important element - carbon dioxide, or CO2.
Sigman测量海藻所需的氮气量用于解释(他的学说)，他还能精确计量这些古老的植物需要的另外一种重要元素——二氧化碳。
Some of the carbon therefore ends up as soot, rather than carbon dioxide, and oxygen that should be combining with carbon combines with nitrogen from the air instead.
其中的一些碳最终以烟雾而非二氧化碳的形式排放出来，而那些本该与碳结合的氧分子则转而与空气中的氮结合。
The atmosphere is roughly 78 percent nitrogen, 21 percent oxygen, with trace amounts of water, argon, carbon dioxide and other gases.
地球大气含有大约78%的氮气、21%的氧气和痕量的水蒸气、氩气和二氧化碳等其它气体。
The atmosphere is roughly 78 percent nitrogen, 21 percent oxygen, with trace amounts of water, argon, carbon dioxide and other gases.
地球大气含有大约78%的氮气、21%的氧气和痕量的水蒸气、氩气和二氧化碳等其它气体。
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