adj.放射性的，有辐射的

Po is a radioactive element.
钋是一种放射性元素。
Eric used a special instrument to show where in the body the radioactive material went.
埃里克用一种特殊的仪器显示这种放射性物质移行到身体的什么部位。
They should not yet abandon this option for the disposal of highly radioactive waste.
他们还不能放弃选择这种方式来处理高辐射废料。
Radioactive substances decay over time, releasing energy in the form of radiation.
放射性物质会随时间衰变，释放出辐射能量。
The Geiger counter clicks more frequently near radioactive materials, indicating increased radioactivity.
盖革计数器在接近放射性物质时更频繁地点击，表明辐射增强。
Nuclear power plants harness the energy from nuclear fission, a process involving radioactive elements.
核电站利用核裂变的能量，这是一个涉及放射性元素的过程。
Radioactive isotopes are often used in medical imaging procedures, such as PET scans.
放射性同位素常用于医学成像程序，如正电子发射断层扫描。
The半衰期of a radioactive element is the time it takes for half of its atoms to decay.
放射性元素的半衰期是其一半原子衰变所需的时间。
After the Chernobyl disaster, large areas became contaminated with radioactive fallout.
切尔诺贝利事故后，大片区域受到放射性沉降物的污染。
Radioactive dating is a method used to determine the age of rocks and fossils based on the decay of radioactive isotopes.
放射性测年是一种根据放射性同位素的衰变来确定岩石和化石年龄的方法。
Potassium-40 is a naturally occurring radioactive isotope found in small amounts in our body.
钾-40是一种天然存在的放射性同位素，在我们的身体中少量存在。
In nuclear medicine, radioactive tracers can help diagnose diseases by highlighting specific organs or tissues.
在核医学中，放射性示踪剂可以通过突出特定器官或组织来帮助诊断疾病。
The safe disposal of radioactive waste is a critical issue in the management of nuclear power facilities.
安全处理放射性废物是管理核电设施的关键问题。