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l-shell
释义
WordReference Random House Unabridged Dictionary of American English © 2024
L-shell
(el
′
shel′),
USA pronunciation
n.
[
Physics.
]
Physics
the 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