中非集装箱航运网络演化及其对经贸联系的支撑能力

郭建科, 郭姝, 秦娅风, 梁木新

Change of China-Africa container shipping network and its ability to support economic and trade ties

GUO Jianke, GUO Shu, QIN Yafeng, LIANG Muxin

图5 1998—2018年OLS回归残差分布

Figure 5 Spatial distribution of the ordinary least squares (OLS) regression residuals from 1998 to 2018