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单词 k-shell
释义

WordReference Random House Unabridged Dictionary of American English © 2024
K-shell  (kāshel′),USA pronunciation n. [Physics.]
  1. Physicsthe first shell of electrons surrounding the nucleus of an atom and containing, when filled, two electrons having principal quantum number 1. Cf. L-shell, M-shell, N-shell.
  • 1965–70

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