看起來條件比較差，便攜式蓋革計數器沒有，機器要預熱，估計是電子管的。老一輩挺不容易的，這麽艱苦硬是搞出了蛋蛋

來源: Amita 於 2025-07-02 20:22:01 [舊帖] [給我悄悄話] 本文已被閱讀：次

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