As a guide element of urban expansion and the urban structure framework, road traffic has a complicated relation with spatial form evolution of old cities.
作为城市拓展导向要素以及城市结构骨架的道路交通，与旧城空间形态演变之间存在复杂的关系。
Our understanding of cities in anything more than casual terms usually starts with observations of their spatial form and structure at some point or cross-section in time.
通常，随着我们及时对城市空间布局从多个角度或者横断面进行观察，我们对其认识就开始加深了，而不是(仅仅停留在)肤浅的印象上面。
The results of aggregation dimension show that the spatial distribution of cities in GuangXi is imbalanced, with large difference in urban densities and an obvious structure of "double cores".
聚集维数测算结果表明：广西城镇空间分布不均衡，密度差异大，双核心”结构明显。
And as the spatial structure changes, the industry system of the city will change with it, especially the functions of the core cities.
伴随着城市空间结构的演进，其产业结构和城市(特别是中心城市)的功能也随之改变。
At last, comparing with other valley-cities, this thesis indicated the model, characteristics and dynamical mechanism of development zone and urban spatial structure evolvement of Lanzhou city.
文章最后通过与同类型的河谷型城市的横向对比，揭示出开发区主导下的兰州城市空间结构演进的特征、模式和动力机制。
At last, comparing with other valley-cities, this thesis indicated the model, characteristics and dynamical mechanism of development zone and urban spatial structure evolvement of Lanzhou city.
文章最后通过与同类型的河谷型城市的横向对比，揭示出开发区主导下的兰州城市空间结构演进的特征、模式和动力机制。
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