For example, Digital Elevation Model (DEM) data points are equally arranged in a grid pattern.
例如，数字高程模型(Digital Elevation Model,DEM)数据点在网格图形中均匀排列。
As the data base of the GIS digital terrain analysis, digital Elevation Model (DEM) contains rich of terrain, topography and related geo-information and knowledge.
数字地形模型(DEM)包含着丰富的地形、地貌及相关的地学信息与知识，是GIS数字地形分析的数据基础。
DEM (Digital elevation Model) is a data set of plane coordinate or longitude, latitude, and elevation of the regular square grid points in some region.
数字高程模型(DEM)是一定区域范围内规则格网点的平面坐标及其高程的数据集或者是经、纬度和海拔高度的数据集。
Water depth data (main parameters), which was matching to model's grid structure, was obtained by using the function of GIS digital elevation model (DEM) to linear-interpolate the isobath of chart.
在模型参数求取中应用了GIS的数字高程模型(DEM)功能将海图等深线通过线性内插得到与模型网格相匹配的具有栅格结构的水深数据(模型的主要参数)。
Digital Elevation Model (DEM) is an important type of basic data in gi s.
数字高程模型(dem)是地理信息系统的一种基础数据。
The collected ground true data includes topography map with scale of 1:50 000 and the corresponding Digital Elevation Model (DEM).
收集的地理实况数据包括1：5万的地形图和根据该地形图经数字化处理生成的数字高程模型(dem)。
Digital Elevation Model(DEM) is a digital modeling process which aims at terrain and physiognomy. Irregular triangulation TIN is the best model when DEM data are stored and expressed.
数字地形模型是针对地形地貌的一种数字建模，这种建模的结果通常就是一个数字高程模型（DEM）。
Digital Elevation Model(DEM) is a digital modeling process which aims at terrain and physiognomy. Irregular triangulation TIN is the best model when DEM data are stored and expressed.
数字地形模型是针对地形地貌的一种数字建模，这种建模的结果通常就是一个数字高程模型（DEM）。
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