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1994年6月1日

1分钟阅读

勇闯急流

一个新的环境机构应对波托马克河的挑战

作者：提姆·比尔兹利

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This article was originally published with the title “Shooting the Rapids” in 大众科学 Magazine Vol. 270 No. 6 (June 1994), p. 32
doi:10.1038/scientificamerican0694-32

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