铀母体与其衰变产物分离。

The parent uranium has been partitioned from its decay products.

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氡很容易从地下释放到空气中并通过称为氡子核的短命衰变产物分解。

Radon escapes easily from the ground into the air, where it disintegrates through short-lived decay products called radon progeny.

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氡是天然放射性惰性气体，是铀系衰变链中的一个衰变产物。

As a product from the uranium disintegration, radon is a natural radioactive idle gas.

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Alpha particles are these helium nuclei, and they are the result of radioactive decay.

阿尔法粒子是氦核，它们是放射性衰变的产物。

麻省理工公开课 - 固态化学导论课程节选