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一、引言双核结构模式是指在某一区域中,由区域中心城市(核心城市)和港口城市(门户城市)及其连线所组成的一种空间结构现象。双核结构兼顾了区域中心城市的趋中性和港口城市的边缘性。其基本内涵是以两核为中心,以强有力的集聚,通过交通轴线进行扩散来带动相关经济带的发展。在中国区域经济的发展进程中,呈现出一种耐人寻味的现
I. INTRODUCTION The dual-core structure model refers to a kind of spatial structure consisting of regional central cities (core cities) and port cities (port cities) and their connections in a certain area. The dual-core structure takes into account the trend of central city in the region and the port city. Its basic connotation is that it takes the two nuclear centers as the center, promotes the development of the relevant economic zones by means of powerful agglomeration and proliferation through the transportation axis. In the development of China’s regional economy, showing an intriguing present