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半衰期 in a sentence

"半衰期"'s meaning  
  1. It has a half-life of about 41/2 billion years .
    它的半衰期大约为45亿年。
  2. The half-life of francium is 22 minutes .
    钫的半衰期是22分钟。
  3. A very useful quantity is the half-time for the reaction .
    一个很有用的量是反应的半衰期
  4. the half life of the uncharged pion is 6×s.
    中性兀介子的半衰期为6秒。
  5. 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
  6. 半衰期造句挺难的,這是一个万能造句的方法
  7. By that is meant the time which elapses before half of the existing atoms have disintegrated or exploded .
    这里所指的半衰期是现存原子的一半发生衰变或爆炸所消耗的时间。
  8. It has a rather short half - life of 138 days
    半衰期很短,只有138天。
  9. Experimental study on half - life period of carotin in spirulina
    螺旋藻中胡萝卜素半衰期实验研究
  10. Test method for electrostatic properties of plastic films . half - life method
    塑料薄膜静电测试方法半衰期
  11. Research on the relationship of citing half life and price index
    引文半衰期与普赖斯指数之间的数量关系研究
  12. Long period delayed neutron
    半衰期缓发中子
  13. 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
  14. 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
  15. A radioactive , inert , gaseous isotope of radon , with a half - life of3 . 92 seconds
    锕射气氡的一种放射性的,惰性的和气态的同位素,其半衰期为3 。 92秒
  16. Study on the half life and the term of validity of stability of stable chlorine dioxide disinfectant
    稳定态二氧化氯消毒剂的半衰期及有效期预测试验
  17. More:   1  2  3

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