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数字地图库
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数字地图库
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digital map database
数字地图库
存储在计算机或存储介质中数字化了的地图数据,也是具有确定坐标和属性的地形和地物特征信息的有序离散数据集合。
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Egon Sharpe Pearson
ego orientation
ego psychology
Egorov
Egorov system of surfaces
Egorov theorem
Egor Titov
E-government
e-government
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e-government data element directory
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