In this paper, the relation among the water level, area and volume of inundation in the test region is defined by selecting proper test region, setting up its DEM and using regression analysis.
通过选择适当的试验区，建立其DEM，利用回归分析确定了试验区内淹没水位、淹没面积与淹水量三者之间的关系。
Also, by using variance analysis, the relation of calculation error to the number of parcel corner points and the size of parcel area is analysed.
利用方差分析的方法分析计算误差与界址点点数、宗地面积大小间的关系。
This paper introduces the micro physical character for fog and its relation with air pollution. The collection & analysis of fog example are conducted in the polluted and comparably clean foggy area.
介绍雾的微物理特征及其与大气污染的关系，对污秽和较清洁的多雾地区进行雾试样采集、分析；
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