Based on the experiments, a chemical procedure used for rapidly separating thorium from the natural uranium irradiated by 18o ions was developed.

在条件实验的基础上提出了一个从中能18o离子照过的天然铀样品中简便、快速地分离钍的化学流程。

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Australia, Canada and South Africa, all with deposits of natural uranium, are reluctant to accept limits on their future rights to enrich it for profit.

拥有铀自然资源储备的澳大利亚，加拿大和南非自然不情愿接受对他们未来浓缩这些铀以赚取利益权利的限制。

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The investigation results on natural uranium concentrations in drinking water sources, Hei River and Ba River, in Xi 'an City are presented in this paper.

对西安市生活饮用水源黑河与灞河水体中天然放射性元素铀含量进行了调查。

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Natural uranium is only 0.7% U-235, which is what you need for your reactor.

FORBES: Stuxnet and the Iranian Nuclear Program

At Isfahan, natural uranium (yellowcake) is turned into a gas that can then be spun in centrifuge machines to produce more usable uranium.

ECONOMIST: No appetite for carrots, no fear of sticks | The

Some other Nato countries also use munitions with DU, which has 40% less radiation than natural uranium, itself not considered a health hazard.

BBC: No DU weapons risk, say experts