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。

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Like her mother, Irene was awarded a Nobel Prize, along with her husband Frederic in 1935, for producing new radioactive elements.

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。

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Like her mother, Irene was awarded a Nobel Prize, along with her husband, Frederic, in 1935 for producing new radioactive elements.

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。

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Some medicines,like Prussian blue pills, can help expel radioactive elements from the body.

VOA: special.2011.03.30

And, he worked for a little less than 10 years at McGill where he did more work on these particles that radiate from radioactive elements.

他在McGill工作了将近10年,在McGill期间做了更多的,关于放射性元素的放射性的工作。

麻省理工公开课 - 固态化学导论课程节选

He won for producing new radioactive elements beyond uranium.

VOA: special.2009.06.14

In 1911, Marie Curie received her second Nobel prize for her work on radioactive elements.

CNN: Tuesday,

Radioactive elements - such as uranium - are unstable and break down over time.

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The news that radioactive elements are present in small amounts in some food seems ominous.

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