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中国矿产资源贸易网络演化
王文宇1(), 贺灿飞1,2(), 任卓然1,2
Evolution of mineral resources trade network in China
WANG Wen-yu1(), HE Can-fei1,2(), REN Zhuo-ran1,2

图2. 中国矿产资源贸易量和市场数量演化特征

Fig. 2. Evolution characteristics of trade values and the number of markets of mineral resources in China