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1928年7月1日

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人类的首项机械成就

古代人类的石器经历了一个明确的演变过程

作者：J. Reid Moir

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This article was originally published with the title “Man's First Mechanical Achievement” in 大众科学 Magazine Vol. 139 No. 1 (July 1928), p. 26
doi:10.1038/scientificamerican0728-26

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