B21沒有physical試飛還不是造出來了？B21證明現在美國造軍機已經不需physical試飛。

來源: 大觀園的賈探春於 2025-11-17 10:34:30 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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