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。
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。
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。
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。
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。
For most people more than half of their natural background radiation dose comes from radon, a radioactive gas that can accumulate in homes, schools and workplaces.
对大多数人来说，他们自然环境辐射剂量的一半以上来自氡—一种可聚集在家庭、学校和工作场所的放射性气体。
The Geiger counter registered a high concentration of radioactive particles.
盖革计数器示出放射性粒子的高浓度。
The core of this model is a function called a stretched exponential relaxation, which is similar to the decay curve of a radioactive material.
这个模型的核心是延伸型指数函数的松弛效应，就像放射性物质的衰变曲线一样。
Planetary scientists can determine a rock's age by calculating how many radioactive "parent" isotopes of a particular element have decayed into "daughter" isotopes.
行星科学家们可以通过计算一个特定元素有多少“母亲”放射性同位素衰变为“女儿”同位素来确定岩石的年龄。
They had been interested in thorium — a radioactive element that can fuel nuclear reactors but not be processed into weapons.
他们当时对一种放射性元素钍很感兴趣，这种元素能驱动核反应堆，却不能制造生产成武器。
Then you have a huge amount of radioactive gases and particles, and if the primary and secondary containment fails, you have a large amount of radioactive gases escaping into the environment.
这会产生大量的放射性气体和颗粒，如果第一层和第二层安全壳都失效的话，大量放射性气体便会泄漏到外界。
It is a radioactive epithet, guaranteed to get you a trip to HR and maybe even a slap in the face.
它是一个放射性的词语，保证让你去了一趟高速运转的旅程，而且可能甚至是一个耳光。
Spidey gains his powers from a mysterious yogi rather than a radioactive spider.
而他超人力量的源泉，也从放射性的蜘蛛变成了神秘的瑜珈。
Radon is a natural radioactive gas that occurs at higher than normal levels in certain parts of the U.S..
氡是一种天然的放射性气体，在美国某些地区浓度高于平均水平。
It burned for 10 days and released a cloud of radioactive matter that spread over a wide area of the USSR.
它整整燃烧了10天，产生的放射性物质云笼罩了前苏联的大片地区。
Heat from the decay of naturally occurring radioactive elements could keep a planet warm enough for water.
放射性元素在自然衰败过程中所产生的热量能使星球上的水维持液态形式。
It is a naturally occurring radioactive form of hydrogen, sometimes known as heavy hydrogen.
氚是氢的放射性形式，有时被称作超重氢。
We are a successful species inhabiting a radioactive world and must have evolved protective mechanisms to deal with the effects of natural radiation.
这个世界，放射性物质无所不在。我们是成功生活在其中的一个物种，我们已经进化出对抗自然放射影响的保护机制。
This radioactive element has a half-life of some 5, 700 years.
这种放射性元素半衰期约为5700年。
The city's challenge, chiefly, is to dispose of cesium-137, a radioactive isotope with a half-life of 30 years.
这座城市面临的最大问题就是处理铯—137，这是一种半衰期为30年的放射性同位素。
But a 2007 earthquake in Japan caused a radioactive leak [at one plant there], and now we're in the midst of this catastrophe.
但是，日本发生的2007年地震就造成了核泄漏(当地的一个核电站引起的)，现在我们就身临其境。
A lump of radioactive cesium-137, for example, may decay at a steady rate overall, but individual atoms within the lump will decay in an unpredictable, random pattern.
一团放射性铯137，整体以恒定的速率衰变，但是其内部单个原子的衰变是一种不可预测的随机模式。
The researchers used a radioactive tracer to be sure that the slugs are actually producing the chlorophyll themselves, as opposed to just stealing the ready-made pigment from algae.
研究人员利用放射性示踪法确定，这种海蛞蝓确实能自己产生叶绿素，而不仅仅是从海藻那里偷取现成的色素。
What was termed a small amount of radioactive iodine had, indeed, been released.
据说事实上还是有一小部分的放射性碘泄露了。
Not a single particle leaked radioactive material-strong evidence of the fuel's safety.
没有任何一颗粒子泄漏放射性物质——这是燃料安全性的一个有力证据。
On a macro scale, a team of British scientists working on ways to shield astronauts from radioactive clouds in space had a breakthrough in 2008.
在宏观尺度上，英国科学家小组正在研究如何保护宇航员免受太空辐射云的伤害，并在2008年取得了突破进展。
It was possible the rods' metal cladding had melted, exposing the radioactive core, a spokesman said.
一位发言人声称燃料棒的金属镀层可能已经溶毁，暴露出放射性核芯。
Unbeknown to them, the "scrap" contained a highly radioactive source used to treat cancer patients.
他们不知道这件“废品”里有一个用于治疗癌症患者的高辐射源。
Unbeknown to them, the "scrap" contained a highly radioactive source used to treat cancer patients.
他们不知道这件“废品”里有一个用于治疗癌症患者的高辐射源。
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