求翻译：本文总以怀柔区的遥感图像、北京怀柔区的地质图数据和北京地区土地利用类型数据为基本资料，利用NV软件构建生成DME数据，并收集怀柔的地图信息，然后将DEM数据与地图信息进行对比。利用DEM数据与GIS的空间分析功能，根据各种提取地形因子的原理，对DME数据进行不同地形因子的提取。利用GIS的叠加分析功能，实现了对怀柔区各种地形因子的分析与研究。是什么意思？

Total to Huairou District of remote sensing images, geological map data of Huairou District, Beijing and the Beijing area of ​​land use types of data for basic information, nv software build generated dme data and collect the Huairou map information, and then dem data and map information contrast. D

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This article always take the Huairou area remote sensing image, the Beijing Huairou area geologic map data and the Beijing area land utilization type data as the basic document, produces the DME data using the NV software construction, and collects Huairou's map information, then carries on the DEM

This total to remote sensing image in Huairou district, Beijing in Huairou district of Beijing area geological map data and land-use data for basic information, construction of DME data generated with software for NV, maps of Huairou, and gather information, compare and DEM data and maps. Spatial an

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