如果雅典有煤铁，有人发明了蒸汽机，用来榨橄榄油比用奴隶便宜，就会迅速普及，然后蒸汽船取代帆船，大航海更容易。

来源: rulvbobing 于 2025-12-21 12:51:22 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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