·2,447,543篇论文数据，部分数据来源于NoteExpress
The reason is the spatial concentration of population and resources had the effect of increasing returns to scale.
原因是人口和资源的空间集聚产生了规模收益递增的效应。
Related functions of these functional areas are the main result of spatial concentration, which leads to the spatial variation of the evolution of urban space.
这些功能区是相关功能主体空间集聚的结果，它们的空间变化带动了城市空间的演化。
One of essential characteristics to the urbanization is urban economic spatial concentration or convergence, which academic circles and government departments can't know enough.
对城市化的一个本质特征——城市经济具有空间聚集状态和趋势，学术界和决策部门认识不足。 这一特征与经济系统运动有没有内在联系?。
应用推荐