When the commonest isotope of iron (56Fe) absorbs a neutron, the result is not radioactive.
当最普通的铁（56Fe）的同位素吸收了一个中子，生成物无放射性。
One of Marie Curie's outstanding achievements was to have understood the need to accumulate intense radioactive sources, not only to treat illness but also to maintain an abundant supply for research.
居里夫人的一项杰出成就是理解了积累强放射源的必要性，这不仅是为了治疗疾病，而且也是为了保持充足的研究供应。
These elements may not be quite as radioactive as plutonium, but if ingested or inhaled, they also pose a risk of causing cancer.
这些元素虽然没有钚的放射性那么高，但如果被吞食或吸入，一样会增加患上癌症的几率。
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。
This radioactive form of nitrogen does not occur in nature.
氮的这种放射性形式在自然界中不会产生。
The ideal nanocomposite would not only resist radiation damage. It would also not itself become radioactive by absorbing neutrons.
理想的纳米复合材料不仅能抗辐射损害，通过吸收中子它本身也不会变得具备放射性。
Its purpose is not to shield radioactive emissions but to prevent the release of radioactive dust and other materials, and to keep out rainwater, which could carry contaminants into the water table.
它的作用不是用来遮挡放射性排放而是阻止放射性烟尘和其它物质的释放，以及遮挡雨水以防止雨水携带污染物流入地下水。
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。
Shareholders have dropped its stock as if it were not merely oily but radioactive.
股东减少了股票，就好像泄漏的不仅仅是石油，还是放射性物质一样。
NUCLEAR power does not emit greenhouse gases, but the technology does have another rather nasty by-product: radioactive waste.
核能发电不会排放温室气体，然而这项技术的确存在另一个不好对付的副产品：放射性核废水。
But that was not before fishermen about 70km south of the plant had caught tiny sand-eels, known as konago, with larger than normal traces of radioactive iodine and caesium.
然而，在此之前有渔民在核电站向南大约70千米的地方捕到了含放射性碘元素和铯元素超标的一种叫做玉筋鱼的沙鳗鱼。
In recent years, a number of leaks of radioactive water have stoked environmentalist ire, though local residents were not exposed to dangerous doses of radiation.
最近几年，好几次核辐射水漏洞事件激怒了许多环保人士，虽然当地居民并没有受到辐射的危险。
They do not protect against external radiation, or against any other radioactive substances besides radioactive iodine.
他们不能阻止外部的辐射、或是任何其他辐射形式。
How was one [living in France] supposed to know whether or not to worry about a radioactive cloud?
怎能知道，[在法国生活]的人们应不应该为放射性尘埃担心呢？
Plastic CARDS did not yet exist, so Shepherd-Barron's ATM accepted only checks laced with identifying traces of radioactive carbon-14.
那时还没有塑料卡，因此，谢泼德·巴伦的AT M机只能检测放射性碳- 14的痕迹。
The food is not exposed to radioactive materials — rather, it's zapped with a radiation beam, which the EPA compares to a big flashlight.
食品并不暴露在放射性物质中——相反，它受环保局比喻为大手电光束的辐射光束照射。
Keep in mind, this is not a nuclear reaction, but a simple chemical explosion that often (as in this case) results in little or no radioactive material being leaked into the outside world.
注意，这并不涉及核反应，只是简单的化学爆炸，它基本不会导致放射性物质泄漏出来。
Update: There's no evidence of any radioactive leakage, but officials have confirmed that the cooling process for the nuclear plant has not yet gone according to plan.
更新：现在还无法证明有辐射泄漏，但官方已经确认核电站的冷却程序没有按照设定的工作。
Dr James Gemmill, Sepa's radioactive substances manager, said: "The concentration of iodine detected is extremely low and is not of concern for the public or the environment.
SEPA的放射性物质主任詹姆斯 格梅尔说，”检测出来的放射性碘同位素浓度极低，不对公众和环境构成影响.
In fact, radium not only damaged their health, but also made the laboratory equipment with which they were working radioactive.
事实上，镭不但损害了他们的健康，而且也使他们工作用的实验设备具有了放射性。
The present Measures shall not apply to the operation of explosives, radioactive materials, nuclear energy materials to be used for civil purpose and urban gas.
民用爆炸品、放射性物品、核能物质和城镇燃气的经营，不适用本办法。
The present Measures shall not apply to the operation of explosives, radioactive materials, nuclear energy materials to be used for civil purpose and urban gas.
民用爆炸品、放射性物品、核能物质和城镇燃气的经营，不适用本办法。
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