nitrogen dioxide

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.

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.

Elimination of nitrogen dioxide and nitric oxide by soda lime and its components

碱石灰及其组成成分清除呼吸回路中氮氧化物效应的研究

A portable on-spot measurement of nitrogen dioxide instrument was developed based on photometry.

研制了一种基于光度法现场测定大气二氧化氮的便携式仪器,开发了相应的控制软件.

Determination of nitrogen dioxide from ambient air by passive sampling

被动采样法测定环境空气中的二氧化氮

Ambient Monitoring and Research of Nitrogen Dioxide

环境空气中二氧化氮的测定及问题研究

Nitrogen dioxide and ozone may cause pulmonary edema.

二氧化炭和臭氧可以引起肺水肿.

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 method has has been applied to the determination of nitrogen dioxide to reduce the sampling time.

用该法测定大气中的二氧化氮可大大缩短采样时间。

Effect of Pressure on Visible Light Absorption Characteristics of Nitrogen Dioxide

二氧化氮可见光区内压力对吸收特性的影响

Temporal-spatial Distribution Characteristics of Nitrogen Dioxide Concentration in Shanghai Ambient Air

上海市环境空气NO2浓度时空分布特征

Ship operations emit nitrogen oxides, sulfur dioxide, particulate matter, and hazardous pollutants into the air.

船舶作业中把排出的氮氧化物 、 二氧化硫 、 微粒物质以及危害性的污染一并散播到空气中.

Oxygen, carbon dioxide and nitrogen are essential for animal and plant life.

氧 、 二氧化碳、氮是动植物生命所必需的.

The wrapper method commonly used gas is nitrogen, dioxide and ammonia.

该包装法常用的气体是氮气 、 二氧化碳和氨气.

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。

There are many uncertainties in the role of forest ecosystems in slowing down the increases of atmospheric carbon dioxide concentration and their responses to and feedbacks on the global change associated with the increasing CO_2 concentration in the atmosphere and the global increase in nitrogen deposition.

在大气CO2浓度升高和氮沉降增加等全球变化背景下，森林生态系统减缓CO2浓度升高的作用及其对全球变化的响应和反馈存在诸多不确定性。

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

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

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。

Nitrogen Dioxide and Nitrogen Monoxide Formed in a Combustion Flame

火焰中形成的二氧化氮和氧化亚氮

Passive diffusion tube for detecting nitrogen dioxide

检测二氧化氮的静态扩散管

The Detection of Nitrogen Dioxide in Air with Fiber Optical Sensor Based on Sol-gel Film

溶胶-凝胶薄膜光纤传感器法测定空气中二氧化氮

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%。

The main harmful gases as monoxide, nitrogen oxides, hydrocarbons, sulfur dioxide and so on.

主要有害气体为一氧化碳 、 氮氧化物 、 碳氢化合物 、 二氧化硫等.

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

NAAQSs for carbon monoxide, particulates, sulfur dioxide, nitrogen dioxide, hydrocarbons, ozone, and lead.

联邦环境保护局长已经制定了《全国环境空气质量标准》,具体制定了诸如一氧化碳 、 粒 、 氧化硫、氧化氮 、 氢化合物 、 氧和铅的含量标准.

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。

Second, nitrogen dioxide emissions question.

二是二氧化氮的排放问题.

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

Simultaneous Determination of Nitrogen Dioxide and Sulfur Dioxide in the Air by Passive Individual Samplers

被动式个体采样器在监测空气中NO2和SO2浓度中的应用