面向对象的地理实体时空位置多粒度表达 |
| 于天星, 李锐, 吴华意 |
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An Object-oriented Representation Method for Multi-granularity for Spatio-temporal Position of Geographical Entities |
| YU Tianxing,LI Rui,WU Huayi |
| 图1 地理实体位置的变化示例 |
| Fig. 1 An example of position change of one geographical entity |
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