| 释义 |
actinide series- 英?[??ktinaid ?si?ri:z]
- 美?[??kt??na?d ?s?riz]
英英释义Noun1. a series of 15 radioactive elements with increasing atomic numbers from actinium to lawrencium2. (chemistry) a series from actinium to lawrencium of 15 radioactive elements with increasing atomic numbers
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