天文学上,秒差距是如何规定的?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/11 07:16:56
![天文学上,秒差距是如何规定的?](/uploads/image/z/5097802-58-2.jpg?t=%E5%A4%A9%E6%96%87%E5%AD%A6%E4%B8%8A%2C%E7%A7%92%E5%B7%AE%E8%B7%9D%E6%98%AF%E5%A6%82%E4%BD%95%E8%A7%84%E5%AE%9A%E7%9A%84%3F)
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