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单词 alpha decay
释义

WordReference Random House Unabridged Dictionary of American English © 2024
alpha decay′, [Physics.]
  1. Physicsa radioactive process in which an alpha particle is emitted from the nucleus of an atom, decreasing its atomic number by two.
  • 1935–40

Collins Concise English Dictionary © HarperCollins Publishers::
alpha decay n
  1. the radioactive decay process resulting in emission of alpha particles
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