| 单词 | radioactivity equilibrium |
| 释义 | radioactivity equilibrium [´rād·ē·ō·ak`tiv·ǝd·ē ´ē·kwǝ`lib·rē·ǝm] NUCLEAR PHYSICS A condition which may arise in the decay of a radioactive parent with short-lived descendants, in which the ratio of the activity of a parent to that of a descendant remains constant. |
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