The earliest production reactors necessarily used normal uranium as fuel.
最早为生产用的反应堆，必须使用普通铀作为燃料。
Such a concentration of uranium means the lifetime cancer risk in the village was more than 153 times higher than in the normal population.
如此高的铀浓度意味着该村庄的人患终身癌症的风险超过普通人群的153倍。
Conclusion Illegal uranium mining had brought about the fact that the annual effective dose of the inhabitants who lived in contaminated environment was makedly high above the normal level.
结论这种私自开采铀矿已造成了被污染环境生活群体的剂量大大超过天然辐射本底的正常水平，应予以关注。
Under the normal mining condition and 95% the utilization rate of the uranium resource in 320 uranium Deposit, 0.045% as the marginal grade is recommended.
在320铀矿床常规开采条件下，要求铀矿资源(金属量)利用程度不低于原情况的95%时，选择的边界品位为0.045%。
The results show that there is a normal level of natural radioactivity of soil in the Xiazhuang granite uranium ore field.
评价结果表明，下庄铀矿田的土壤中天然放射性水平处于正常范围。
The results show that there is a normal level of natural radioactivity of soil in the Xiazhuang granite uranium ore field.
评价结果表明，下庄铀矿田的土壤中天然放射性水平处于正常范围。
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