- 剩余放射性 shèngyúfàngshèxìng residual radioactivity
- 放射性元素 fàngshèxìngyuánsù radioactive elementAn element composed of radioactive isotopes that can spontaneously emit radiation, such as radium, uranium, or thorium.
- 放射性同位素 fàngshèxìngtóngwèisù radioactive isotoperadioactive isotope; radioisotope
- 放射性废物 fàngshèxìngfèiwù radioactive wastewaste material that contains radioactive substances
- 放射性材料 fàngshèxìngcáiliào radioactive materialmaterial that contains unstable atoms and emits ionizing radiation
- 放射性核素 fàngshèxìnghésù radionuclideradioactive nuclide; radionuclide
- 放射性武器 fàngshèxìngwǔqì radiological weapon
- 放射性污染 fàngshèxìngwūrǎn radioactive contaminationradioactive pollution or contamination caused by the release of radioactive materials into the environment, typically through industrial activity or nuclear explosions
- 放射性沾染 fàngshèxìngzhānrǎn radioactive contaminationradioactive contamination; the presence of unwanted radioactive substances on surfaces or within solids, liquids, or gases
- 放射性沾染物 fàngshèxìngzhānrǎnwù radioactive contaminant
- 放射性活度 fàngshèxìnghuódù radioactivitythe rate at which a radioactive source decays over time
- 放射性炸弹 fàngshèxìngzhàdàn radiological bomba weapon designed to spread radioactive material using conventional explosives
- 放射性烟羽 fàngshèxìngyānyǔ radioactive plumea cloud of radioactive material released into the atmosphere
- 放射性碘 fàngshèxìngdiǎn radioiodineradioactive iodine
- 放射性落下灰 fàngshèxìngluòxiàhuī radioactive falloutradioactive fallout; radioactive dust that falls to the ground after a nuclear explosion
- 低放射性废物 dīfàngshèxìngfèiwù low-level wastelow-level radioactive waste
- 放射性衰变 fàngshèxìngshuāibiàn radioactive decayThe process by which certain unstable elements spontaneously release radiation to transform into more stable elements; also called [[衰变|衰變|shuai1 bian4]] (shuāibiàn) or [[放射衰变|放射衰變|fang4 she4 shuai1 bian4]] (fàngshè shuāibiàn)
