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1919年3月29日

1分鐘閱讀

121 英里大炮

美國陸軍軍械軍官展示超遠端火炮的徒勞性

作者：J. Bernard Walker

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This article was originally published with the title “A 121-Mile Gun” in 大眾科學 Magazine Vol. 120 No. 13 (March 1919), p. 312
doi:10.1038/scientificamerican03291919-312

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