half-life英英释义|half-life的英文解释-字典翻译

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英语单词

half-life

half-life英英释义

half-life的英文翻译是什么意思，词典释义与在线翻译

英英释义

Noun:

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)

half-life怎么读 half-life是什么意思

n. 半衰期

half-life的相关资料

近反义词临近单词

half lifen.半衰期(半衰变周期；半排出期)

half-life的用法和样例

例句词汇搭配

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。

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