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1995年4月1日

1分钟阅读

太阳黑子：发现不同

作者：沙莎·内梅切克

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More by Sasha Nemecek

This article was originally published with the title “Sun Spotting the Difference” in 大众科学 Magazine Vol. 272 No. 4 (April 1995), p. 20
doi:10.1038/scientificamerican0495-20b

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