英语词汇“decay time”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	decay time
释义	WordReference Random House Unabridged Dictionary of American English © 2024 decay′ time′, [Physics.] Physicsthe 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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