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。
The 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.
二氧化碳和空气污染物从相同的工业来源基本上出现并且整个世界被扩散，以便空气污染也是是全球变化的一部分。
Carbon dioxide and air pollutants arise largely from the same industrial sources and are diffused throughout the world, so that air pollution is also part of global change.
介绍了室内空气污染的现状、特点及其危害，指出了室内空气污染的主要污染源和污染物。
In this paper, the status, characteristics and harm of indoor air pollution are described. The primary contaminants and sources of indoor air pollution are pointed out also.
本文采用C4.5决策树算法构建空气质量评价系统，挖掘空气污染物和空气等级关系的历史数据，建立空气污染物-空气等级智能评价模型。
Intelligent evaluation model for air quality based on C4.5 decision tree algorithm is established through the historical data of air pollutants and air quality classes in this article.
本文采用C4.5决策树算法构建空气质量评价系统，挖掘空气污染物和空气等级关系的历史数据，建立空气污染物-空气等级智能评价模型。
Intelligent evaluation model for air quality based on C4.5 decision tree algorithm is established through the historical data of air pollutants and air quality classes in this article.
应用推荐