| 单词 | annihilation radiation |
| 释义 | annihilation radiation [ǝ´nī·ǝ`lā·shǝn ´rād·ē`ā·shǝn] PARTICLE PHYSICS Electromagnetic radiation arising from the collision, and resulting annihilation, of an electron and a positron, or of any particle and its antiparticle. |
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