At first, we construct a stimulant digital elevation model by a certain resolution in gauss surface and calculate gauss curvature of each grid point, which is regarded as true value to terrain simplification index.是什么意思_At first, we construct a stimulant digital elevation model by a certain resolution in gauss surface and calculate gauss curvature of each grid point, which is regarded as true value to terrain simplification index.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句