放射性水已渗入了地下蓄水池。
东欧正在迅速变成一个放射性残渣的倾倒场。
Eastern Europe is rapidly becoming a dumping ground for radioactive residues.
他们在核武器试验过程中暴露于放射性核辐射。
They were exposed to radioactive fallout during nuclear weapons tests.
早期地球含有丰富的放射性物质。
受害者可能接触到了有毒或放射性矿物。
Victims may be exposed to poisonous or radioactive minerals.
43号元素的放射性使其易于分离和测量。
Element 43's radioactivity makes it easy to isolate and measure.
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.
放射性的镭散热器在体育场的辐射半径是可变的。
The radiation radius of the radioactive radium radiator in the stadium is variable.
花盆里的向日葵浸没在被放射性元素污染的池塘里。
Sunflowers growing in pots were placed, with their roots submerged, in the pond contaminated with radioactive elements.
我亲自组织了反对在大西洋倾倒放射性废料的示威活动。
I personally arranged for the demonstration against radioactive waste dumping in the Atlantic Ocean.
向日葵继续生长；在这个过程中，他们吸收了放射性元素。
The sunflowers kept growing; in the process, they absorbed radioactive elements.
地质年代通常是通过矿物中发现的各种放射性元素的衰变率来获得的。
Geological dates are usually obtained by using the rates of decay of various radioactive elements found in minerals.
地质年代通常是通过矿物中发现的各种放射性元素的衰变率来获得的。
Geological dates are usually obtained by using the rates of decay of various radioactive elements found in minerals.
弗雷德里克成了她的助手之一，艾琳教他放射性工作中需要掌握的技能。
Frederic became one of her assistants and Irene taught him the techniques required to work with radioactivity.
因此，科学家建议，只要有受放射性污染的池塘，就可以用向日葵来消毒。
Scientists therefore propose using sunflowers for decontamination wherever there are radioactively contaminated ponds.
她经常把装有放射性同位素的试管放在口袋里，对试管里发出的漂亮的蓝绿光赞不绝口。
She had often carried test tubes containing radioactive isotopes in her pocket, remarking on the pretty blue-green light they gave off.
她于1867年出生在波兰，原名玛丽亚·斯克洛多夫斯卡，以放射性研究而闻名，曾两次获得诺贝尔奖。
Born Maria Sklodowska in Poland in 1867, she is famous for her work on radioactivity, and was twice a winner of the Nobel Prize.
与她的母亲一样，1935年，艾琳和她的丈夫弗雷德里克因为制造出了新的放射性元素而获得了诺贝尔奖。
Like her mother, Irene was awarded a Nobel Prize, along with her husband Frederic in 1935, for producing new radioactive elements.
居里夫人现在的名气到达顶峰，从1922年开始，她是医学学会的成员，研究放射性物质的化学性质及其医学应用。
Marie Curie, now at the highest point of her fame and, from 1922, a member of the Academy of Medicine, researched the chemistry of radioactive substances and their medical applications.
与她的母亲一样，1935年，艾琳和她的丈夫弗雷德里克（Frederic）因为制造了新的放射性元素而获得了诺贝尔奖。
Like her mother, Irene was awarded a Nobel Prize, along with her husband, Frederic, in 1935 for producing new radioactive elements.
然而，大约在同一时间，科学家们意识到彗星可能含有衰变的放射性同位素，这些同位素可能使彗星内部的温度升高到导致内部进化的温度。
About the same time, though, scientists realized comets might contain decaying radioactive isotopes that could have warmed cometary interiors to temperatures that caused the interiors to evolve.
这项工作为詹姆斯·查德威克爵士发现中子铺平了道路，尤其是为伊莲娜和弗雷德里克·约里奥特·居里在1934年发现人工放射性奠定了基础。
This work prepared the way for the discovery of the neutron by Sir James Chadwick and, above all, for the discovery in 1934 by Irène and Frédéric Joliot-Curie of artificial radioactivity.
基于这项研究的结果，玛丽·居里获得了理学博士学位，1903年，玛丽和皮埃尔与贝克勒尔共同获得了诺贝尔物理学奖，以表彰他们发现了放射性物质。
Based on the results of this research, Marie Curie received her Doctorate of Science, and in 1903 Marie and Pierre shared with Becquerel the Nobel Prize for Physics for the discovery of radioactivity.
最常用的方法是放射性碳定年法。
低放射性固体废物将被弃置在地下深处。
事实证明，放射性碳年代测定法适用于许多史前艺术品。
It turns out that radiocarbon dating works for a lot of prehistoric art.
汤姆，你在考古学课上有没有讨论过放射性碳年代测定法？
Tom, in your archaeology class, did you talk about radiocarbon dating?
这些矿物可以用放射性衰变技术测定年代，因为它们所含的放射性微量元素非常少。
These minerals can be dated by radioactive decay techniques because of the very small quantities of radioactive trace elements they, in turn, contain.
放射性碳年代测定法显示，亚马逊黑土中被烧焦的木头通常有1000多年的历史。
Radiocarbon dating shows that the charred wood in Terra Preta soils is typically more than 1,000 years old.
我们现在通过测量掩埋在漂流物中木头放射性的碳-14元素，以精确地确定冰川作用的时期。
We now know the age of the glaciation accurately from radiometric dating of the carbon-14 in logs buried in the drift.
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