| 单词 |
pair formation |
| 释义 |
pair formation- 英?[p?? f?:?mei??n]
- 美?[p?r f?r?me??n]
英英释义Noun1. the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus
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| 随便看 |
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