HPGeγ谱仪对主动式活性炭法中222Rn样品的探测效率研究
HPGeγ보의대주동식활성탄법중222Rn양품적탐측효솔연구
Study of Detection Efficiency of HPGe γ Spectrometry for222 Rn Samples Obtained by Active Activated Charcoal
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