From this model, it is obvious that the center is appropriate location of region key city in close condition and appropriate location of region key city in exoteric condition laies aboard the leading intercourse direction.
From this model, it is obvious that the center is appropriate location of region key city in close condition and appropriate location of region key city in exoteric condition laies aboard the leading intercourse direction.
从模型中可以看出，在封闭条件下区域中心城市适宜区位趋于区域的地理中心，而在开放条件下区域中心城市适宜区位趋于主导联系方向。