1923 年 7 月的天空

关于爱因斯坦验证的方法和结果

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大众科学 Magazine Vol 129 Issue 1This article was originally published with the title “The Heavens in July, 1923” in 大众科学 Magazine Vol. 129 No. 1 (), p. 48
doi:10.1038/scientificamerican0723-48
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