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4 “纺锤形”结构示意图
Figure 4 Schematic diagram of the “spindle shaped” structure