波音一年用的鋼還不夠造一艘驅逐艦，一架波音787才用11噸鋼，80%是複合材料

來源: 丁丁在美洲於 2025-02-11 08:20:16 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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