数据显示，在去年4月中国实施出口管制后的八个月内，中国对美出口的钇类产品仅17吨，而此前八个月相关出口量为333吨，降幅极为显著。
Photograph: Simon Hill
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Trade between the EU and two South American countries may start within two months under a provision application of the Mercosur deal.
Prometheus-compatible metrics