radioactivity的中文翻譯是什麼意思
radioactivity
n. 放射（性）; 輻射能
radioactivity的柯林斯釋義
ADJ-GRADED放射性的;有輻射的
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.
政府在弗納德存放放射性廢料已達50年之久。
radioactivity的英文釋義
Noun
1. the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay
radioactivity的場景例句
It is the product of radioactive decay ( see radioactivity ) and is used in helium dating.
氦 是由放射性衰變形成的,可用於氦年代測定法.
This example illustrates the great sensitivity of the radioactivity method.
這個例子說明了放射性方法很靈敏.
The Geiger counter showed the existence of radioactivity.
蓋格計算機顯示出放射性的存在.
This, because of its age, has already lost most of its radioactivity.
這些鉛因為年代久遠, 已失去了它絕大部分的放射性.
In practice it would be possible to measure radioactivity one thousand fold less than this.
在實際上,可能測定的放射性比這個值小一千倍.