“4πβ+4πγ sum counting method”的概念、定义、翻译、参考文献-科学参考

单词	4πβ+4πγ sum counting method
释义	4πβ+4πγ sum counting method Encyclopedia 工学4πβ+4πγ相加计数方法释 4πβ+4πγ sum counting method4πβ+4πγ相加计数方法一种放射性核素活度绝对（直接）测量方法。属于高几何（立体角）计数方法。
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