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Photochemical smog is found in many large cities all over the world. 在全世界很多大城市中都发现有光化学烟雾。
The term photochemical oxidants refers to the secondary pollutants formed in photochemical smog. 光化学氧化剂这一词是指在光化学烟雾中生成的次生污染物。
Because these chemicals are changed by the sun high up in the air, Los Angeles smog is called photochemical smog. 因为这些化学物质被高空的眼光改变了。洛杉矶的烟雾叫做光化学烟雾。
Photochemical smog: Smog produced by action of solar radiation, especially of ultraviolet radiation, on exhausts from vehicles and industry. 太阳辐射,尤其是紫外线辐射对汽车和工业所排放的废气产生光化作用而形成的烟雾。
In addition, tropospheric ozone, a main constituent of photochemical smog, will increase if motor ehicle use continues to rise. 此外，如果汽车的使用继续增长，光化学烟雾所主要含的对流层臭氧将增加。
Another type of smog, photochemical smog, is created in the air when sunlight reacts with pollutants from burning fossil fuel. 燃烧石油、煤炭采暖或发电，汽车的尾气都可以引起当地空气污染。
The function of hydrocarbons and nitrogen oxides in photochemical smog formation and the formative process of ozone and peroxyacetyl nitrate are discussed. 介绍了氮氧化物、碳氢化合物在形成光化学烟雾中的作用和臭氧、过氧乙酰硝酸酯产生的过程,并介绍了光化学烟雾的形成机理。
Once the formation of photochemical smog, affection is a wide range.And its harmfulness has caused enormous threat for city environment, human health, ecological balance. 光化学烟雾一旦形成，影响范围广，其危害性已对城市环境、人体健康、生态环境平衡造成巨大危胁。
Afterwards " fuliginous model " , " photochemical smog " after pollution, modern is being entered with " indoor air is polluted " the 3rd generation that is a mark pollutes period. 继“煤烟型”、“光化学烟雾型”污染后，现代人正进入以“室内空气污染”为标志的第三代污染时期。
Photochemical Smog and Its Chemical Characteristics 光化学烟雾及其化学特征
health effects of photochemical smog 光化学烟雾对健康的影响
Keywords photochemical smog;ozone;air pollution; 光化学烟雾;臭氧;空气污染;
warning level for photochemical smog 光化学烟雾预警标准
The Occurrence Mechanism of the Photochemical Smog Air Pollution 光化学烟雾大气污染的形成机理
Stress can be the undoing of so many fine players. 紧张可能是这许多优秀选手失败的原因。
Development of CAI Courseware for Atmospheric Photochemical Smog 大气光化学烟雾CAI课件的研制
Development of data acquisition system for experiment of photochemical smog 光化学烟雾物理模拟实验数据采集系统的研制
In the word "mother" the stress is on the first syllable. 在"mother"这一字里，重音在第一个音节上。,在＂mother＂这一字里，重音在第一个音节上。
Investigation on experiment system for modeling of photochemical smog 光化学烟雾模拟实验系统
Keywords Photochemical smog;Ozone;Peroxyacetyl nitrate;Free radical; 光化学烟雾;臭氧;过氧乙酰硝酸酯;活性自由基;