她关于铀的理论可以解释她的团队的矿石样本中43号元素的存在。
Her theory about uranium would have explained the presence of element 43 in her team's ore sample.
地基的岩石和泥土中铀的含量。
这项计划就是利用激光的纯度选择性地激发铀的罕见形态。
The plan was to exploit the extraordinary purity of laser light to selectively excite uranium's rare form.
星期六，两国的专家们把装有铀的核燃料棒加载进核反应堆。
On Saturday, specialists from both countries loaded uranium packed fuel rods into the reactor.
但是曾几何时，回收的前苏联核弹头占据了美国低浓缩铀的大部分市场。
But at times, recycled Soviet bomb cores have made up the majority of the American market for low-enriched uranium fuel.
而如果把核反应堆的建设和铀的提炼和运输过程算上，核能的碳排放量是风能的25倍。
Nuclear power results in up to 25 times more carbon emissions than wind energy, when reactor construction and uranium refining and transport are considered.
接下来，小珠子里头的铀离子会被碳酸铵溶液溶解，其后沉淀，析出“黄饼”，即铀的氧化混合物。
The uranium is then dissolved from the beads using a solution of ammonium carbonate and precipitated as "yellow cake", a mixture of uranium oxides.
国际原子能组织观察员报告称已在叙利亚发现了更多来源不明的铀的踪迹，但叙利亚仍否认其拥有秘密核项目。
Inspectors from the International Atomic Energy Agency reported that they had found more unexplained traces of uranium in Syria, which still denies having a secret nuclear programme.
可用以制造核电厂燃料的氧化铀的价格从2001年每磅7.25美元上涨至47.25美元，创下面值上的新高。
The price of uranium oxide, from which fuel for nuclear power plants is made, has risen from $7.25 a pound in 2001 to $47.25—a record in nominal terms.
国际原子能机构要求伊朗将其库存的大部分铀送往俄罗斯和法国，以便将这些铀的纯度提升至20%，并转化成燃料棒。
The IAEA wants Iran to send most of its uranium stockpile to Russia and France to boost it to 20 percent and turn it into fuel rods.
如果澳大利亚进行铀浓缩和初步燃料加工，氧化铀的出口收入(主要出口对象是美国、法国和日本)将是2005年的4倍。
Australia could quadruple its 2005 revenue from exporting uranium oxide (mainly to America, France and Japan) if it enriched and fabricated the fuel first.
对于安理会五加一所提出的新方案，伊朗仍然没有回应，而且继续浓缩铀，星期六甚至声称用于浓缩铀的离心机数量再度增加。
Iran has not responded to the new P5-Plus One offer, and Iran continues to enrich uranium, using what it said Saturday is a marked increase in the number of uranium centrifuges.
由于人们认为气候的变化会促进核能的发展前景，现在铀已经是供不应求，而且对铀的投机性购买已使铀价格从2003年的一磅10美元涨到85美元。
As concern over climate change improves the prospects for nuclear power, uranium demand has outpaced supply and speculative buying has forced the price up to $85 per pound, from $10 in 2003.
与铀相比，钍的储藏量更为丰富，能量密度也更高。
Compared to uranium, thorium is far more abundant as well as much more energy-dense.
现在，正如你们从铀 238幻灯片中想起的，我想下一张幻灯片会展示它。
Now, as you recall from the uranium 238 slide, I think the next slide will show it.
伊朗退出了此交易，立刻要求更高浓度的铀，并坚持在伊朗进行交易。
Iran backed out of this deal, demanding higher-enriched uranium immediately, and insisting the swap take place in Iran.
在世界各地，空气中都存在氡气，其浓度取决于土壤中差别极大的铀含量。
Radon gas in the air is present worldwide, its concentration depending on the highly variable uranium content of the soil.
伊朗的铀产量增加，使得观察员的核查更为艰难。
Iran's uranium production has expanded, making it harder for inspectors to audit.
铀元素之后的元素，是人工合成的。
氦是钍和铀元素数千年放射性衰变的副产品。
Helium is the by product of millennia of radioactive decay from the elements thorium and uranium.
氦是钍和铀元素数千年放射性衰变的副产品。
Helium is the by product of millennia of radioactive decay from the elements thorium and uranium.
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