“射气”造句

氡和钍射气的子体易被气溶胶吸附.
The daughter nuclides of radon and thoron tend to become attached.

锕射气氡的一种放射性的, 惰性的和气态的同位素, 其半衰期为3.
A radioactive, inert, gaseous isotope of radon, with a half - life of 3.92 seconds.