軍民兩用，原理很簡單，利用自然水晶同體的同一性和異體的多樣性，像古代軍隊發虎符一樣，冷戰時俄羅斯潛艇有用過。。

來源: 小二哥李白於 2024-05-19 08:28:20 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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