• On the other hand, when it came to penetrating solids, penetrating solids, the alpha radiation was poor at penetrating solids, whereas the beta radiation was very good at penetrating solids.

    另一方面,当研究穿过固体的时候,嗯,穿过固体,会发现阿尔法射线很难穿过固体,然而贝塔射线,很容易穿过固体。

    麻省理工公开课 - 固态化学导论课程节选

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