All of these two modules achieve unified management and scheduling about remote sensing images, vector maps, digital elevation models and three-dimensional scene data.

这两个模块的结合，实现了遥感影像、矢量地图、数字高程模型以及三维场景数据的统一管理和调度。

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Digital-elevation models computed by scanned photographs within a digital photogrammetric workstation and the subsequent DEM comparison allowed the determination of glacial changes.

UNESCO: Dublin Core