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单词 l-shell
释义

WordReference Random House Unabridged Dictionary of American English © 2024
L-shell  (elshel′),USA pronunciation n. [Physics.]
  1. Physicsthe second shell of electrons surrounding the nucleus of an atom and containing, when filled, eight electrons having principal quantum number 2. Cf. K-shell, M-shell, N-shell. 
  • 1925–30

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更新时间:2025/7/24 8:15:11