The development mechanism of spatial networking contains the dynamic mechanism which is the mechanism of growth pole and the motive mechanism which is the mechanism of flows.

空间网络化开发的动力机制为增长极机制，运行机制为流的机制。

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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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