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前言利用天然放射性,采用β-γ闪烁法(对不含钍样品)或β-γ-γ闪烁能谱法(对含钍样品)敞口测定岩石中的铀含量时,经常
Preface When using natural radioactivity, beta-gamma scintillation (for thoron-free samples) or beta-gamma-gamma scintillation spectrometry (for thoriated samples) is used to determine the amount of uranium in rock, often