It is five years since the giant trucks hauling ore around the Mountain Pass mine in California’s Mojave desert fell silent. Molycorp, the only major rare earths producer in the US, had just collapsed under the weight of a $1.7bn debt. The bankruptcy burnt investors and left the nation almost entirely reliant on China for the supply of 17 metallic elements that are embedded in most high-tech products from wind turbines to electric vehicles and F-35 fighter jets.
五年前，在美国加利福尼亚州莫哈韦沙漠(Mojave Desert)芒廷帕斯(Mountain Pass)矿山运载矿石的重型卡车停了下来。美国唯一主要稀土生产商Molycorp刚刚在17亿美元债务的重压下倒闭。这一破产让投资者蒙受损失，并导致美国几乎完全依赖manbetx3.0 供应稀土。从风力发电机、电动汽车到F-35战斗机，大部分高科技产品都需要这17种金属元素。
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