The early Earth contained abundant radioactive materials.
早期地球含有丰富的放射性物质。
The content of the radioactive materials is reduced.
降低了放射性物质的含量。
Radioactive materials are composed of atoms that are unstable.
放射性物质由很多不稳定原子构成。
Radioactive materials tend to be released from a damaged nuclear plant in a certain pattern.
受损核电站在释出放射性物质时往往会遵循同一种模式。
So they canconsume many of the long-lived radioactive materials that thermal reactors cannot.
因此，它们可以消耗传统反应堆不能消耗的长期存在的放射性材料。
No one knows how neutrinos could interact with radioactive materials to change their rate of decay.
没人知道中微子中微子是如何同放射性材料发生作用并改变他们的衰变速率的。
There are special requirements for dangerous goods such as explosive and radioactive materials.
对于爆炸品和放射性物品等危险货物还有特殊的要求。
The borax plays the role of separating radioactive materials-uranium and thorium from the zircon sand.
硼砂对放射性物质—铀和钍起到从锆英砂中分离的作用。
The robots used in nuclear power plants prevent human personnel from being exposed to radioactive materials.
在核电厂使用的机器人能防止工作人员接触放射性物质。
The radiation comes from space (cosmic rays) as well as natural radioactive materials found in the soil, water and air.
辐射来自于外层空间（宇宙射线），以及在土壤，水和空气中的天然放射性物质。
The cold fusion process requires no radioactive materials, creates no radioactive wastes and is extremely energy efficient.
这壹核聚变过程无需放射性原料，不产生放射性废料，且能效奇高。
Apart from the damage caused by fires and explosions, accidents also release radioactive materials which can cause radiation sickness.
除了事故之中的爆炸和大火造成的伤害之外，核事故同样会释放出能够造成辐射病的放射性物质。
The residue found in third-hand smoke includes heavy metals, carcinogens and, even radioactive materials that are dangerous to children.
三手烟残余中包含有重金属、和致癌物质，特别是放射性物质对儿童是危害重大的。
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。
So if these radioactive materials are released into the environment yes radioactivity was released but no it is not dangerous at all.
所以如果这些放射性物质释放到环境中，是的，放射性被释放，但是不，他们完全没有停险。
The robots used in nuclear power plants handle the radioactive materials, preventing human personnel from being exposed to radiation.
用于核电站的机器人处理辐射材料，避免工作人员暴露于辐射中。
The robots used in nuclear power plants handle the radioactive materials, preventing human personnel from being exposed to radiation.
用于核电站的机器人处理辐射材料，使职员不暴露于辐射。
Monoclonal antibody agents can be obtained by coupling the chemotherapy agents, radioactive materials, biotoxin and monoclonal antibody.
将化疗药物、放射性物质以及生物毒素等与单克隆抗体偶联就得到单克隆类药物。
The different radioactive materials being reported at the nuclear accidents in Japan range from relatively benign to extremely worrisome.
日本核事故中报道的不同放射物质从相对良性的到让人极其担忧的都有。
The importation of the radioactive isotope, radiation equipment and other radioactive materials should come up to applicable state regulations.
进口放射性同位素、射线装置和含有放射性物质的物品的，按照国家有关规定办理。
Illicit trafficking of radioactive materials will result in serious threaten to society in the case of nuclear and radiological terrorism.
在核与辐射恐怖形势日趋严峻的情况下，放射性物质的非法运输对社会安全造成极大的威胁。
One of the radioactive materials released by reactors is radiative isotopes of iodine, which poses a serious health risk particularly to children.
反应堆释放的一种放射性物质就是碘的同位素，其会人们尤其是儿童造成严重的健康损害。
Nuclear engineering majors study radioactive materials and radiation and learn how to use them in areas such as power, nuclear medicine, and industry.
这个专业学习放射性材料和辐射，以及学习如何在电力供应、核医疗和工业等领域应用这些材料。
Such an increase can be of a meteorological origin and need not be due to an accidental release of radioactive materials from the nuclear power stations.
但环境辐射水平增加并不一定是由于核电站意外泄漏放射性物质，亦有可能与气象因素有关。
Such an increase can be of a meteorological origin and need not be due to an accidental release of radioactive materials from the nuclear power stations.
但环境辐射水平增加并不一定是由于核电站意外泄漏放射性物质，亦有可能与气象因素有关。
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