This paper establishes a GM (1, 1) model from the statistical data to predict the dust concentration. It is proven that the method is effective and practical.
采用粉尘浓度统计值建立GM(1,1)模型，进而对粉尘浓度进行预测，说明这种方法的有效性和实用性。
From the statistical data of "Jilin Statistics Yearbook", we find out the consumption pattern for countryside inhabitants of Jilin province in the nearly 3 years.
从《吉林统计年鉴》的统计资料，了解到近3年吉林省农村居民的消费情况和消费结构的变动趋势。
From the statistical data of "Jilin Statistics Yearbook", we find out the consumption pattern for countryside inhabitants of Jilin province in the nearly 3 years.
从《吉林统计年鉴》的统计资料，了解到近3年吉林省农村居民的消费情况和消费结构的变动趋势。
应用推荐