| 单词 | Soddy's displacement law |
| 释义 | Soddy's displacement law [`säd·ēz di`splās·mǝnt ´lȯ] NUCLEAR PHYSICS The atomic number of a nuclide decreases by 2 in alpha decay, increases by 1 in beta negatron decay, and decreases by 1 in beta positron decay and electron capture. |
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