我看視頻“大國重器”, “中國超級工程”，中國的確在一些方麵超過美國，比如架橋機，盾構機，北鬥導航等

來源: 老生常談12 於 2024-03-20 08:25:20 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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