The land use changes of Shuangcheng City and their impacts on grain yield and environment were discussed by using the spatial analysis function of GIS on the basis of Landsat data in the years of 1986 and 2000 combined with the statistic data.是什么意思_The land use changes of Shuangcheng City and their impacts on grain yield and environment were discussed by using the spatial analysis function of GIS on the basis of Landsat data in the years of 1986 and 2000 combined with the statistic data.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句