half-life是什么意思 half-life怎么读
英式：[]
美式：[]
half-life单词基本解析：
n.半衰期n.半衰期；
half-life变化用词：
复数:half-lives;副词: half-hourly |
复数：half-lives
half-life英英释义：
Noun1. 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)
名词 half-life:
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)
同义词：half life
half life[ 'hɑ:flaif ]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)同义词：half life
half-life中文词源：
half-life用法和例句：
The translator who devoted half life on the translation business are just for a penny.
人家浸淫半生,为的都是那一把铜钱.咱们半生辛劳,对那孔方兄,何时不是横眉冷对?
The Sun is near half life expectancy.
太阳快到其生命的一半了.
Confucius has a half life time, are engaged in education work.
孔子一生中有一大半的时间, 是从事教育工作.
The fervor is half life, indifferent is half death.
激情是半个生命, 冷漠是半个死亡.
One waiting of whole life, half life grief.
一生的等待, 半世的哀愁.
half-life
用作名词(n.)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。
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。