全球稀土贸易格局演化及竞合关系研究 |
叶前林,马继越 |
Research on the Evolution of Global Rare Earth Trade Network Pattern and the Relationship Between Competition and Cooperation |
Qianlin YE,Jiyue MA |
图4 1999—2022年全球稀土贸易网络平均最短路径长度和小世界系数变化情况 |
Fig.4 Variation of average shortest path length and small world coefficient of global rare earth trade network from 1999 to 2022 |