大家都搜：
空气污染的定义
1、pollution facts───污染事实
2、pollution───n.污染；污染物
3、noise pollution───n.噪音污染
4、water pollution───[环境]水污染
5、sediment pollution───沉积物污染
6、pollution essays───污染论文
7、pollution definition───污染定义
8、thermal pollution───热污染
9、indoor pollution───室内污染，室内空气污染
1、Definition, types, sources and current research progress of the indoor air pollution were illustrated.───了室内空气污染的定义、种类、来源，国内外研究现状。
2、definition and characteristic of indoor air pollution as well as the source of major pollutants and their danger are introduced with measures for controlling indoor air pollution presented.───介绍了室内空气污染的定义、特点以及主要污染物的来源和危害，并提出了室内空气污染的控制。