稀土产品全球贸易网络格局演化及其影响因素 |
廖秋敏,罗连英 |
Evolution of the Global Trade Network Pattern of Rare Earth Products and Its Influencing Factors |
Qiumin LIAO,Lianying LUO |
图1 2009—2020年7种稀土产品贸易网络整体网络密度指标演变 |
Fig.1 Evolution of the overall network density index of the trade network of seven rare earth products from 2009 to 2020 |