“2π正比计数方法”的概念、定义、翻译、参考文献-科学参考

单词	2π正比计数方法
释义	2π正比计数方法 Encyclopedia 工学2π正比计数方法释 2π proportional counting method2π正比计数方法采用大面积流气式多丝正比室开展大面积α、β平面源在2π立体角范围内粒子发射率测量的技术方法。
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