| 单词 | secular equilibrium |
| 释义 | secular equilibrium [`sek·yǝ·lǝr ´ē·kwǝ`lib·rē·ǝm] NUCLEONICS Radioactive equilibrium in which the parent has such a small decay constant that there has been no appreciable change in the quantity of parent present by the time the decay products have reached radioactive equilibrium. |
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