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mar 1, 1978 - 美国“寂静舰队”试航成功

Description:

1978 年 3 月，“寂静舰队”项目成功试航了电磁推进系统的新型核潜艇。

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少女前线世界观补全计划

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28893

Date:

mar 1, 1978

Now

~ 48 years ago

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