從航空工業發展曆史來看，C919有一些操之過急。美國的波音，麥道，法國達索，做全新的機型，往往從軍用運輸機，民用貨機開始

來源: easycity 於 2023-05-29 16:15:14 [舊帖] [給我悄悄話] 本文已被閱讀：次

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