Such challenges were unthinkable half-a-century ago when prospectors looking for uranium stumbled instead on a rich deposit of rare earths about an hour's drive from Las Vegas.
一个铀矿勘探无意中发现了稀土蕴藏量丰富的从拉斯维加斯只有一个小时的车道，半世纪前这种挑战是不敢想象的。
Those obstacles have not deterred several new firms that hope to strike it rich with uranium.
这些阻碍都未能阻止一些新公司希望以铀致富。
The formation of uranium mineralization is considered as a result remobilization, migration and local concentration caused by preferential melting of the uranium-rich strata.
此类型矿床是富铀地层选择性熔融，并在此过程中导致铀的活化、转移和局部富集的结果。
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