假定我们有某种放射性原子，它们以一定的几率衰变。
Suppose we've got some sort of radioactive atom, which has a certain chance of decaying.
气流携带着这些放射性原子，将其分散到全世界。
Air currents caught these atoms and then distributed them around the world.
放射性原子本身能嬗变为性质完全不同的另一种原子。
A radioactive atom could transmute itself into an entirely different kind of atom.
他的理论是把一只假设的猫放到理论上存在的盒子里再扔进去一个想象中的放射性原子。
The original theory involved putting a hypothetical cat into a theoretical box along with an imagined radioactive atom.
这些测试使放射性原子进入大气层，气流挟裹了这些原子，并在全球范围内扩散。
The tests lofted radioactive atoms high into the atmosphere, where air currents caught the atoms and then dispersed them around the planet.
就连薛定谔编出猫跟放射性原子一起关在盒子里的故事的时候，他也没想到有这种神奇的事情吧。
Something even Schrodinger never thought of when he came up with the whole cat in the box with the radioactive atom scenario.
而美国没有发现切尔诺贝利事故的影响，可能是太远了，到达美国的放射性原子浓度不够高，Scherb补充说。
No post-Chernobyl effect was seen in the U.S., which was presumably too far away for the radioactive atoms to reach in sufficiently high amounts, Scherb added.
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。
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.
如果通用原子公司的这个项目能够成功，它就能够提供能部分解决核能问题的方案，例如如何处理大量的放射性核燃料的问题。
The General Atomics program, if successful, could provide a partial solution to one of the biggest problems associated with nuclear energy: figuring out what to do with highly radioactive waste.
科学家们忙于填补元素周期表的空白、探索未知的原子现象(如放射性和键合)。
Boffins were busily filling in the blanks in the periodic table and probing unknown atomic phenomena (like radioactivity and bonding).
原子通过辐射由不稳定状态转变为更加稳定状态的过程称为放射性衰变或放射性。
The process by which an atom changes from an unstable state to a more stable state by emitting radiation is called radioactive decay or radioactivity.
放射性物质由很多不稳定原子构成。
Radioactive materials are composed of atoms that are unstable.
当原子不稳定时，会具有放射性。
因为氢气爆炸掀翻了机组厂房的屋顶并且把放射性物质抛散到外部，原子能专家担心燃料池。
Experts worry about the fuel pools because explosions have torn away their roofs and exposed their radioactive contents.
Thiol-SAMMS也能还原像铜和金这样的贵重金属。研究人员现在正试图用其他原子代替硫，如此一来这种粉末就能去除放射性废弃物了。
Thiol-SAMMS can also recover precious metals such as copper and gold, and researchers are now switching out the sulfur for other atoms so that it could mop up radioactive waste.
以后的三十年里，物理学发生了天翻地覆的变化：电子、原子核、放射性、量子理论、相对论相继出现。
The next three decades turned physics on its head, with the discovery of electrons, atomic nuclei, radioactivity, quantum theory and the theory of relativity.
她测量了这两个元素放射性的总量和原子性质，感觉到物质的放射性是同放射性元素的总量成比例的。
She named the other radium. She measured the amount of radioactivity, an atomic property, and felt that the radioactivity was proportional to the amount of the element.
由于没有电力将需要的水泵出以冷却原子核，工程师们将放射性的蒸汽排到空气中以减轻压力。
Lacking electricity to pump water needed to cool the atomic core, engineers vented radioactive steam into the atmosphere to release pressure.
日本原子能安全和保安院说，爆炸后在核电站探测到的放射性铯，极有可能是来自于融毁的燃料棒。
Japan's nuclear agency said there was a strong possibility that radioactive cesium detected at the plant after the blast was from the melting of a fuel rod.
我们有一些放射性同位素，这些同位素会自发变成其他的原子核。
You've got some radioactive isotopic that can spontaneously decay into some other nucleus.
释放出辐射的原子被称为放射性核素。
放射性核素释放的能量减半需要的时间范围是几分之一秒到几百万年，取决于原子的类型。
The time required for the energy released by a radionuclide to decrease by half (i.e., the "half-life") range from tiny fractions of a second to millions of years depending on the type of atoms.
一种放射性的金属元素在用氦原子轰击时发现。
A radioactive transuranic metallic element discovered by bombarding with helium atoms.
乞力马扎罗山峰冰雪消融的标志是在20世纪50年代早期开展的原子能测试产生辐射尘的放射性特征。
One marker of ice loss on Kilimanjaro was the radioactive signature of fall-out from atomic tests carried out in the early 1950s.
这涉及到将很多放射性碳原子放入药物分子中的问题。
This would involve slipping a few radioactive carbon atoms into molecules of the drugs in question.
炸弹所产生的巨大的原子尘意外地将一艘名为福龙五号(Lucky DragonNo. 5)的日本拖渔船笼罩在强烈的放射性烟尘之下。
The unexpectedly vast fallout from the bomb enveloped a distant Japanese tuna trawler named the Lucky Dragon No. 5 in a blizzard of radioactive ash.
这四种新元素都是人造的，是由火花与原子核相互撞击并且循着放射性超重元素衰变的轨迹而发现的。
The four new elements, all of which are synthetic, were discovered by slamming lighter -nuclei into each other and tracking the following decay of the radioactive superheavy elements.
原子能设施中排出的气体中，含有放射性的氪、氙、碘等物质，必须用活性炭将它们吸附干净以后再行排放。
Nuclear facilities in the exhaust gas, radioactive krypton, xenon, iodine and other substances, must use activated carbon adsorption to clean them again after discharge.
原子能设施中排出的气体中，含有放射性的氪、氙、碘等物质，必须用活性炭将它们吸附干净以后再行排放。
Nuclear facilities in the exhaust gas, radioactive krypton, xenon, iodine and other substances, must use clean and activated carbon adsorption them again after discharge.
这项技术非常敏感，甚至能够在十的十五次方（一千万亿）个普通碳原子中找到一个放射性碳原子。
The technique is so sensitive that it can detect a single radioactive carbon atom hiding among a quadrillion (one million billion) ordinary ones.
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