radioactivity的中文翻译是什么意思
radioactivity
n. 放射（性）; 辐射能
radioactivity的柯林斯释义
ADJ-GRADED放射性的;有辐射的
Something that is radioactive contains a substance that produces energy in the form of powerful and harmful rays.
The government has been storing radioactive waste at Fernald for 50 years.
政府在弗纳德存放放射性废料已达50年之久。
radioactivity的英文释义
Noun
1. the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay
radioactivity的场景例句
It is the product of radioactive decay ( see radioactivity ) and is used in helium dating.
氦 是由放射性衰变形成的,可用于氦年代测定法.
This example illustrates the great sensitivity of the radioactivity method.
这个例子说明了放射性方法很灵敏.
The Geiger counter showed the existence of radioactivity.
盖格计算机显示出放射性的存在.
This, because of its age, has already lost most of its radioactivity.
这些铅因为年代久远, 已失去了它绝大部分的放射性.
In practice it would be possible to measure radioactivity one thousand fold less than this.
在实际上,可能测定的放射性比这个值小一千倍.