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美國科學人

1987年9月1日

1分鐘閱讀

穩步前進...

許多科學家認為在太空計劃中缺乏方向

作者：蒂姆·比爾茲利

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This article was originally published with the title “Two Steps Forward ...” in 大眾科學 Magazine Vol. 257 No. 3 (September 1987), p. 18
doi:10.1038/scientificamerican0987-18a

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