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单词
decay time
释义
WordReference Random House Unabridged Dictionary of American English © 2024
decay
′
time′,
[
Physics.
]
Physics
the time required for a collection of atoms of a particular radionuclide to decay to a fraction of the initial number equal to 1/e. Cf.
e
(symbol) (def. 1). Also called
mean life.
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更新时间:2025/2/23 11:30:30