看起来条件比较差，便携式盖革计数器没有，机器要预热，估计是电子管的。老一辈挺不容易的，这么艰苦硬是搞出了蛋蛋

来源: Amita 于 2025-07-02 20:22:01 [旧帖] [给我悄悄话] 本文已被阅读：次

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