The regional and complex air pollution characteristics have emerged in the Pear River Delta region, and already received widespread attentions from both scientists and policy-makers.
珠江三角洲地区大气污染已呈现出区域性复合型污染的特征，引起科学家和决策者的广泛关注。
Objective to research the impact of formaldehyde air pollution on fractal characteristics of Osmanthus Fragrans leaves and the application of fractal theory in formaldehyde air pollution monitoring.
目的探讨甲醛空气污染对桂花叶片分形特征的影响以及分形理论在甲醛空气污染监测中的应用。
The high efficiency and low pollution characteristics of high temperature air combustion were analyzed too.
分析了高温空气燃烧技术的高效低污染特性。
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