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dec 1, 1956 - 美国遗迹D-2探明

Description:

1956年12月，位于新墨西哥州的洛斯-阿拉莫斯的遗迹D-2被探明。
经美国陆军合作，将研究设施掩藏在了“红石兵工厂（Redstone Arsenal）”的机构内。

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dec 1, 1956

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~ 68 years ago

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