Uranium is used to fuel nuclear plants.
铀用作核电厂的燃料。
It can be naturally generated from Uranium atoms that have spontaneously split.
它可以由自发分裂的铀原子自然生成。
Now, as you recall from the uranium 238 slide, I think the next slide will show it.
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。
From an airplane over a hilly wasteland a scientist sent back by radio one word, "Uranium".
一位科学家从一架小山丘陵地上的飞机上，通过无线电发送了一个单词，“铀”。
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。
Her theory about uranium would have explained the presence of element 43 in her team's ore sample.
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。
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.
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。
I'll predict that Uranium-Lead Dating is going to become an increasingly popular dating method.
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。
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.
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。
即各种铀氧化物的混合物。
它含有二氧化铀。
二氧化铀，好了。
Meanwhile, Iran continues to enrich uranium.
与此同时，伊朗还在进行铀浓缩活动。
Elements beyond uranium, these are synthetic.
铀元素之后的元素，是人工合成的。
Unearthing more uranium is expensive and time-consuming.
发掘更多的铀矿成本昂贵而且耗费时间。
The solution is then treated to precipitate uranium oxide.
得到的溶液之后通过处理来析出铀氧化物。
Business opportunities have a half-life, just like uranium.
商业机会有半衰期，就像铀一样。
India wants uranium from Malawi and Niger for nuclear power.
印度希望从马拉维和尼日尔获得到核能原料铀。
A secret Iranian uranium-processing facility was discovered.
伊朗一处秘密的铀浓缩设施被发现。
Uranium is abundant, clean, and safe - in technological societies.
铀很丰富，而且清洁安全——科技学会这么看。
The uranium fuel generates heat by neutron-induced nuclear fission.
铀燃料是由中子导致的核裂变产生的能量加热的。
In most areas, the ash contains less uranium than some common rocks.
在大部分地区，浮尘含有的含有的铀比普通岩石中的含量还低。
Not fission, whereby uranium and plutonium breaks up in pieces, but fusion.
不是裂变，靠那个铀和钚，变成碎片，而是聚变。
Canada agreed to give up a significant quantity of highly enriched uranium.
加拿大同意放弃相当数量的高纯度浓缩铀。
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。
Uranium 235 — the fuel inside a nuclear reactor — undergoes nuclear fission.
铀235——反应堆中的燃料——经过核裂变。
When you split a uranium 235 atom you will create what we call fission fragments.
当你们将铀235原子分离的时候,你会创造出我们称为裂变碎片的。
Iran's uranium production has expanded, making it harder for inspectors to audit.
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.
伊朗的铀产量增加，使得观察员的核查更为艰难。
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