论地理边界的科学属性与表达 |
| 汤国安, 李吉龙, 熊礼阳, 那嘉明 |
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Scientific attributes and expression methods of geographical boundary |
| TANG Guoan, LI Jilong, XIONG Liyang, NA Jiaming |
| 图3 地理边界的简单数学表达示意图 |
| Fig. 3 Schematic diagram of a simple mathematical representation of geographical boundaries |
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