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單詞乎

half life

half life是什么意思、half life怎么讀

half life漢語(yǔ)翻譯

【醫(yī)】 半衰期(放射性物質(zhì)), 半存留期(化學(xué)性物質(zhì))

half life英語(yǔ)解釋

名詞 half life:

  1. the time required for something to fall to half its initial value (in particular, the time for half the atoms in a radioactive substance to disintegrate)
    同義詞:half-life

half life例句

  1. He's been lucky all his life and has never had to find out how the other half lives.
    他享了一輩子的福,從來(lái)不知道窮人生活的滋味。
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