air pollution sources的意思|示意

Urban traffic pollution has risen to one of the major sources of China's urban air and noise pollution.

城市交通污染已经上升为我国城市大气和噪声污染的主要污染源之一。

Exhaust emission of vehicle engines is one of the primary air pollution sources.

车用内燃机的废气排放是大气污染的主要污染源之一。

There are many sources of air pollution, for example, exhaust fumes.

造成空气污染的因素有很多，例如废气。

The concept and method of exposure efficiency are used to precisely estimate the pollution intensity at a specific region resulted by various air pollution sources of industrial sectors.

为了精确地估算产业部门不同类别与特征的大气污染源对指定区域的污染强度，采用暴露效率概念及其研究方法。

Recently, cooking fume is one of the most important air pollution sources in many cities.

近年来，饮食业油烟污染已成为城市大气污染的主要来源之一。

The Clean air Act requires major sources of air pollution to obtain such permits before making changes that would result in a significant emissions increase of any pollutant.

清洁空气法令要求主要空气污染源需获得这种许可证，以防止污染物排放量的严重增加。