n. 半衰期, 半排出期
[化] 半衰期; 半寿期
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)
词型变化:名词复数形式 : half-lives
词性分布:
名词100%

half-life的用法和样例:

例句

用作名词(n.)
  1. The time it takes for half of its original amount to decay is called the half-life.衰变至只剩下原来数目一半所需的时间称为该核素的半衰期。
  2. It is not necessary to wait until half of a sample has decayed in order to measure the halflife.不必一直等到样品衰变一半之后才测量它的半衰期。

词汇搭配

  • half life time半衰期
  • total half-life总半衰期
  • effective half-life有效半排出期,有效半...
  • radioactive half life放射半衰期,放射性物...
  • biological half life生物学半排出期,生物...
  • physical half life物理半衰期(放射性物...
  • half life半衰期(半衰变周期...
  • biological half-life生物学半衰期,生物半...
  • apparent half life表现半衰期
  • biologic half-life生物(学)半衰期...
  • radioactive half-life半衰期
  • half-life period半衰期
  • antibody half-life抗体半衰期
  • effective half life有效半排出期,有效半...
  • apparent half-life表观半衰期
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2-cyanoethanol
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ajar hook
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antagonistic nerves
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antiperistaltic wave
arduin
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