战略性关键金属贸易网络特征及其对产业结构升级的影响
朱学红1,2(
), 彭婷1, 谌金宇1,2()
), 彭婷1, 谌金宇1,2()
Impact of strategic and critical metals trade network characteristics on the upgrading of industrial structures
ZHU Xuehong1,2(), PENG Ting1, CHEN Jinyu1,2()
), PENG Ting1, CHEN Jinyu1,2()
图3. 1996—2017年全球战略性关键金属贸易网络密度和平均聚类系数
Figure 3. Density and average clustering coefficient of the global strategic and critical metals trade network, 1996-2017
