300 BC-1900 AD无定河流域城镇时空格局演变
A historical study on the patterns of spatio-temporal evolution of towns in the Wuding River Basin
300 BC-1900 AD无定河流域城镇时空格局演变 |
| 佟彪,党安荣,许剑 |
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A historical study on the patterns of spatio-temporal evolution of towns in the Wuding River Basin |
| TONG Biao,DANG Anrong,XU Jian |
| 图4 城镇几何中心和中心城镇的移动轨迹图 |
| Fig. 4 The trajectory map of towns geometric centers and central towns |
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