radon

n.

氡 简写符号：Rn

radon详解释义

radon

n.(名词)

【化】氡（Rn）

镭射气

拉东（音译名）

Noun

a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health

radon例句

用作名词(n.)

Radon is the daughter of radium.
氡是镭的子体。

Where does the indoor radon come from?
室内氡气是从哪里而来?

radon近义词

Rn