Map model is a foundation of map use, mathematical models of map and computer-assisted cartography.
地图模型是地图应用、地图数学模型和计算机地图制图的基础。
As computer has been widely used in cartography, maps are shown on the screen increasingly.
随着电子计算机在地图学中的应用，屏幕显示地图日益广泛。
As computer has been widely used in cartography, maps are shown on the screen increasingly.
随着电子计算机在地图学中的应用，屏幕显示地图日益广泛。
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