先秦时期也依赖外部输入，如青铜铁器战车家马等等，汉代时已经赶上西方水平不再依赖输入了，所以呈现对周边优势。

来源: rulvbobing 于 2025-12-18 13:53:29 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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