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half-life

/ˈhɑːf laɪf/ /ˈhæf laɪf/
  • n.
    [核] 半衰期
复数half-lives

双语例句

  1. Business opportunities have a half-life, just like uranium.
    商业机会有半衰期,就像铀一样。
  2. However, if the half-life is increased, the situation changes.
    然而,如果半衰期增加,情况会改变。
  3. Radioactive iodine has a half-life of eight days and decays naturally within weeks.
    放射性碘的半衰期为八天,几周内自然衰变。

网络短语

  • Half-life 2
    半条命;战栗时空
  • half life
    半衰期;半减期;半条命;半死不活
  • Cited Half-life
    被引半衰期;引用半衰期;半衰期
  • half life period
    半衰期;半周期
  • effective half-life
    有效半衰期;有效半减期;有效半生期;有效半化期

英英释义

  • n.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)

词源

  • half-life
    half- +‎ life