铁路功效运输联系空间差异化及区域整合效应
李涛, 彭天浩, 王姣娥, 黄洁

Spatial differentiation and effect on regional integration of inter-city connections in China
LI Tao, PENG Tianhao, WANG Jiaoe, HUANG Jie
图6 2019年基于高铁与普铁的功效空间级联系统
Fig. 6 Spatial cascading system of high-speed rail and conventional rail networks in 2019