The GIS space data accuracy and quality can directly affect a national GIS application more intensively and extensively.
GIS空间数据精度与质量直接影响一个国家GIS应用的广度与深度。
High accuracy DEMs is an important data in study of soil erosion and terrain feature space analysis.
高精度数字高程模型(DEM)是水土流失规律研究与流域地形空间分析中重要的空间数据。
High accuracy DEMs is an important data in study of soil erosion and terrain feature space analysis.
高精度数字高程模型(DEM)是水土流失规律研究与流域地形空间分析中重要的空间数据。
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