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词汇 beta decay
释义 beta decay ˈbiːtədɪkeɪ 短语¹⁴⁴⁹⁷²⁺²
基本英英例句
衰变

Noun:
radioactive decay of an atomic nucleus that is accompanied by the emission of a beta particle The shape of the electron spectrum in beta decay is not dominated by properties of the matrix element.
衰变的电子谱的形状不取决于矩阵元的性质。 dictall
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