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- 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。
- 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。
- 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。
- Emissions of nitrogen dioxide and fine particulate matter, mainly from the transport sector, are of concern in all cities currently experiencing rapid motorization. 二氧化氮和微小颗粒物的排放，主要来自于交通工具，是目前所有正在经历快速机动化的城市所关心的问题。
- According to the European Space Agency, Beijing and its neighbouring north-east Chinese provinces have the planet's worst levels of nitrogen dioxide, which can cause fatal damage to the lungs. 依据欧洲空间局,北京及周边的东北省份的空气是全球二氧化氮成分最高的地区。二氧化氮对肺造成致命的伤害。
- The article introduces the process of improving atomizer burner of boiler and burning condition to reduce the content of nitrogen oxide in flue gas. 本文对太原第一热电厂通过改造锅炉喷燃器,改善燃烧条件以降低烟气中氮氧化物含量的过程进行介绍。
- So combining formaldehyde method with Mohr method,a method that analyze continuouly the content of nitrogen and chlorine is established. 为此将甲醛法和莫尔法相结合,建立了一种连续分析化肥产品中氮和氯的方法。
- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- The content of nitrogen and chlorine in fertilizer is usually measured,but routine analysis method needs weighing twice,consuming long time and strict condition. 化肥中氮和氯的含量是经常需检测的指标,但常规分析方法为两次称量,耗时长,条件控制严格。
- The relatively high content of nitrogen in gas in Yingnan 2 well might be the results of high temperature pyrolysis of kerogen in Cambrian mudstone and CO2 is organic genetic gas. 英南2井天然气中较高含量氮气可能与寒武系泥岩干酪根高温裂解相关；CO2为有机成因气。
- Abstract : The content of nitrogen and phosphorus in the different parts of water hyacinth was tested, and some other economic crops were compared with it in the paper. 摘要 ： 分析、研究了水葫芦植株不同生长时期、不同部位的全氮和全磷含量，并与常见的经济作物进行比较。
- The effect of nitrogen form,yellowing temperature,curing facility on the content of nitrate, nitrite and Tobacco-specific nitrosmaines (TSNA) were studied. 探讨了氮素形态、变黄温度、烘烤设备等因素对烤烟烟叶中硝酸盐、亚硝酸盐和烟草特有亚硝胺(TSNA)含量的影响。
- Toxic effect of nitrogen dioxide 二氧化氮毒性作用
- The content of nitrogen and phosphorus in the different parts of water hyacinth was tested, and some other economic crops were compared with it in the paper. 分析、研究了水葫芦植株不同生长时期、不同部位的全氮和全磷含量,并与常见的经济作物进行比较。
- What is the content of the crude nitrogen. 污氮的含氧量是多少?
- Test of nitrogen dioxide in museum by solid absorbent sampling 固体主动采样法用于检测博物馆内二氧化氮
- The contents of nitrogen, phosphate, potassium, iron, magnesium and boron in wild rice plants and their corresponding soil were analyzed. 摘要对云南不同野生稻植株中氮、磷、钾、铁、镁、硼的含量及其相应生长土壤中矿质元素含量进行分析。
- The contents of nitrogen and phospho rous were lest in pod shell at 0. 781% and 0. 079% respectively. 荚皮中氮、磷含量最低，分别为0.;781%25和0
- The entire content of a book will be located on a single silicon chip. 整本书的内容只用一片硅芯片就可以装下。
- Nitrogen dioxide and ozone may cause pulmonary edema. 二氧化炭和臭氧可以引起肺水肿。
