铀用作核电厂的燃料。
铀可在海水中溶解。
它可以由自发分裂的铀原子自然生成。
It can be naturally generated from Uranium atoms that have spontaneously split.
它一旦从分裂的铀中产生，就会很快衰变。
It's just that once was generated from split Uranium, it decayed very quickly.
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.
如果你在谈论辐射，比如铀元素中的辐射，是的，那是危险的。
If you are talking about radiation, like in the element Uranium, yeah, that's dangerous.
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.
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.
铀-铅年代测定法有一些相当令人兴奋的可能性。
There are a few pretty exciting possibilities for Uranium-Lead Dating.
就像我之前说到的，铀铅年代测定法已经存在一段时间了。
Like I said before, Uranium-Lead Dating has been with us for a while.
剩余的超铀酸盐将被转移到燃烧器中，裂变成更稳定的材料。
The remaining transuranics would be transferred to a burner to be fissioned into more stable materials.
我预测铀-铅年代测定法将会成为一种越来越流行的年代测定方法。
I'll predict that Uranium-Lead Dating is going to become an increasingly popular dating method.
因为有这种新的铀铅定年方法，我们才得以确定我们对大峡谷的一个主要假设是错误的。
Because of this, this new way of doing Uranium-Lead Dating, we've been able to determine that one of our major assumptions about the Grand Canyon was wrong.
在这种情况下，铀铅定年法被用来确定样本中一半的砂岩是在阿巴拉契亚山脉花岗岩形成的同时形成的。
In this case, Uranium-Lead Dating was used to establish that half of the sandstone in the samples was formed at the same time the granite in the Appalachian Mountains was formed.
商业机会有半衰期，就像铀一样。
伊朗一处秘密的铀浓缩设施被发现。
A secret Iranian uranium-processing facility was discovered.
铀价因而下跌，许多矿井关闭。
The price of uranium duly tumbled, and lots of mines closed.
中国能源政策也会大幅提高铀的需求。
铀也是一个很大的因素。
工业出口包括黄金，汞，铀，天然气和电力。
Industrial exports include gold, mercury, uranium, and natural gas and electricity.
铀很丰富，而且清洁安全——科技学会这么看。
Uranium is abundant, clean, and safe - in technological societies.
印度希望从马拉维和尼日尔获得到核能原料铀。
India wants uranium from Malawi and Niger for nuclear power.
那红的是二氧化铀。
与此同时，伊朗还在进行铀浓缩活动。
不是裂变，靠那个铀和钚，变成碎片，而是聚变。
Not fission, whereby uranium and plutonium breaks up in pieces, but fusion.
它含有二氧化铀。
这是钴，不含铀。
于是她发现沥青油矿，它的放射性要比铀本身还要强。
Then she found that pitchblende was more radioactive than uranium by itself.
于是她发现沥青油矿，它的放射性要比铀本身还要强。
Then she found that pitchblende was more radioactive than uranium by itself.
应用推荐