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中文摘要：
淮海经济区是我国典型的省际边缘区，通过对淮海经济区118个县（市）、市区的就业结构与空间分布特征进行主成分分析和聚类分析，得出省际边缘区7种就业空间模式：连续型同心圆圈层就业模式、非连续型同心圆圈层就业模式、跳跃式同心圆圈层就业模式、混合型同心圆圈层就业模式、母子型同心圆圈层就业模式、核心转移型就业空间模式、带状空间就业模式，并从边界、中心城市、交通、城市间关系4个方面总结出各种模式的形成机制。
英文摘要：
The Huai-Hai economic Region is one of the typical provincial border-regions in China. With the methods of principal component analysis and the cluster analysis, the employment structure features and spatial distribution of 118 counties, cities and districts in the Huai-Hai economic Region were explored. And 7 spatial models were given： serial-concentric circles, discontinuous-concentric circles,jumpable-concentric circles, mixed-concentric circles,polycentric-concentric circles,center-revolved-concentric circles and belt-concentric circles.And next conclude the mechanism of the provincial border-regions from 4 aspects： provincial border, core city, traffic and the relation of cities.
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