简述了粗糙集理论的基础知识，应用粗糙集综合评价法对公路建设项目大气污染进行了评价，并通过实例验证了该方法的可行性和实用性。
In this essay, the basic concept of rough set is introduced and a model for atmospheric pollution assessment in highway project is built up by means of rough-set comprehensive evaluation method.
目前，在大气环境影响评价中，区域大气环境容量的研究是实施大气污染物总量控削的前提。
Recently, in the atmospheric environment impact assessment, the study of the atmospheric environment capacity is the precondition of carrying out total capacity control of the atmospheric pollutants.
大气气溶胶光学厚度是评价大气污染，研究气溶胶辐射效应的一个关键因子。
The atmospheric aerosol optical depth is the key factor for evaluating atmospheric pollution and studying aerosol radiative effect.
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