Eastern Europe is rapidly becoming a dumping ground for radioactive residues.

东欧正在迅速变成一个放射性残渣的倾倒场。

《柯林斯英汉双解大词典》

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.

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。

youdao

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。

youdao

They had been interested in thorium -- a radioactive element that can fuel nuclear reactors but not be processed into weapons.

VOA: special.2010.10.15

Suppose we've got some sort of radioactive atom, which has a certain chance of decaying.

假定我们有某种放射性原子,它们以一定的几率衰变

耶鲁公开课 - 死亡课程节选

4 And then there are the last four, carbon 14, which is a radioactive form.

然后，还有碳，以放射性形式存在。

麻省理工公开课 - 固态化学导论课程节选

Radioactive decay happens when a radioactive substance emits a particle.

FORBES: Radioactive Decay Rates May Not Be Constant After All

To call Rangers a poisoned chalice is a bit like calling a mug of radioactive chemicals a nice cup of coffee.

FORBES: What Can We Learn From the Financial Meltdown of Glasgow Rangers FC?

And what if the waste produced by such a reactor was radioactive for a mere few hundred years rather than tens of thousands?

FORBES: Is Thorium the Biggest Energy Breakthrough Since Fire? Possibly.