27 PBq of radioactive material.
27个1015底夸克的放射性物质。
Radioactive material
英语例句库
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。
We found that pitchblende contains at least two radioactive materials, one of which, accompanying bismuth, has been given the name polonium, while the other, paired with barium, has been called radium.
我们发现沥青铀矿物中至少含有两种放射性物质：与铋伴生的命名为钋，与钡伴生的命名为镭。
原声例句
BBC 听力 2023年1月合集
The radioactive material was discovered in a shipment of scrap metal.
这些放射性物质是在一批废金属中发现的。
少年谢尔顿-第二季
Do you have any idea where I could obtain radioactive material?
你知道我应该去哪找放射性物质吗？
VOA Standard 2014年3月合集
Tons of radioactive material shot into the sky when the reactor exploded.
当反应堆爆炸时成吨的辐射性物质射入天空。
VOA Special 2023年3月合集
In addition, nuclear experts say rice naturally takes in little radioactive material.
此外，核专家表示，大米天然吸收的放射性物质很少。
少儿畅学课堂
Long exposure to radioactive materials without any safety measures had damaged her body.
由于长期暴露在射线物质中，且不做任何安全措施，她的身体受到了伤害。
VOA常速英语_美洲
She says exposure to radioactive materials and chemicals took a toll on her body.
她说，接触放射性物质和化学物质对她的身体造成了很大的伤害。
少年谢尔顿-第二季
The problem is, I don't know where to get the necessary radioactive material.
问题是我不知道上哪找所需的放射性物质。
CNN 10 学生英语 2023年2月合集
Now, imagine the pressure when this tiny capsule is filled with a highly radioactive material.
现在，想象一下当你知道这个小胶囊充满高放射性物质时的压力。
Scishow 精选系列
At the time, we didn't really understand how bad playing with radioactive material was.
在那个时候，我们并不知道接触放射性物质有多糟糕。
VOA Special 2021年4月合集
The exact amount of radioactive material that would remain in the water is not known.
目前尚不清楚污水中放射性物质的确切数量。
AP 听力 2013年12月合集
A cargo truck carrying medical equipment with dangerous radioactive material was stolen from a gas station in central Mexico.
一辆运载医疗器械及危险放射性物质的卡车与墨西哥中部的一家加油站被盗。
NPR音讯 2021年4月合集
It turned out that the water contains more than tritium, some more radioactive materials that also in the water.
事实证明，污水中不仅含有氚，还含有一些放射性物质。
少年谢尔顿-第二季
Please tell him Sheldon Cooper called again and that I've successfully obtained the radioactive material that I'm looking for.
请告诉他谢尔顿·库珀又来电话了，告诉他我成功地得到了我一直在找的放射性材料。
当月CRI在线
Two workers at the nuclear facility were hospitalized last week after accidentally getting sprayed with liquid tainted with radioactive materials.
上周，核设施的两名工人因意外被含有放射性物质的液体喷洒而入院。
当月 CNN 10 学生英语 2021年4月合集
What Japan plans to do is remove most of the radioactive material from it and release it gradually into the sea.
日本计划“净化”核废水中大部分放射性物质后，将其逐渐排入太平洋海域。
VOA Special 2021年8月合集
There is also the possibility that the water they find will have too much uranium, a radioactive material that can cause illness.
他们发现的水资源还可能铀含量超标，铀是一种可能引发疾病的放射性物质。
Scishow 精选系列
And ultimately, the storage tanks detonated with the equivalent of almost 70 metric tons of TNT, releasing a ton of radioactive materials.
最终，储油罐被引爆，相当于近 70 公吨 TNT 炸药，释放出一吨放射性物质。
Crash Course 综合篇
How can we use radioactive materials more efficiently?
我们如何才能更有效地使用放射性物质？
TED-Ed（视频版）
The irradiated fuel is a mix of uranium that failed to fission, fission products, and plutonium, a radioactive material not found in nature.
辐射性燃料是由裂变失败的铀，裂变过的铀，和一种自然中不存在的 放射性钚混合而成的。
Kurzgesagt 科普动画
The amount of radioactive material in the environment doubles worldwide, which still isn't civilization-ending, but we may see more cancer for a while.
世界范围内放射性物质在环境中的浓度将会翻倍，尽管这并不会终结文明，但它可能会在一段时间内增加癌症发病率。
中文百科
放射性同位素 Radionuclide
（重定向自Radioactive material）
放射性同位素（英语：radionuclide，或radioactive nuclide），一种具有放射性的核素。是一种原子核不稳定的原子，每个原子也有很多同位素，每组同位素的原子序虽然是相同，但是却有着不同的原子量，如果这原子是有放射性的话，它会被称为物理放射性核种或放射性同位素。放射性同位素会进行放射性衰变，从而放射出伽玛射线，和次原子粒子。
化学家和生物学家都把放射性同位素的技术应用在我们的食品、水和身体健康等事项上。不过他们也察觉到危险性，因而制订使用的安全守则。有些放射性同位素是天然存在的，有些则是人工制造的，称为人造放射性同位素。
英语百科
Radionuclide 放射性同位素
（重定向自Radioactive material）
A radionuclide (radioactive nuclide, radioisotope or radioactive isotope) is an atom that has excess nuclear energy, making it unstable. This excess energy can either create and emit, from the nucleus, new radiation (gamma radiation) or a new particle (alpha particle or beta particle), or transfer this excess energy to one of its electrons, causing it to be ejected (conversion electron). During this process, the radionuclide is said to undergo radioactive decay. These emissions constitute ionizing radiation. The unstable nucleus is more stable following the emission, but will sometimes undergo further decay. Radioactive decay is a random process at the level of single atoms: it is impossible to predict when one particular atom will decay. However, for a collection of atoms of a single element the decay rate, and thus the half-life (t1/2) for that collection can be calculated from their measured decay constants. The duration of the half-lives of radioactive atoms have no known limits; the time range is over 55 orders of magnitude.
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