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History of Ming 《明史》

卷三十九 志第十五 曆九 Volume 39 Treatises 15: Calendar 9

第十五

  ▲回回曆法

  土星黃道南北緯度橫行五十三度三度直行自行十度求法縱橫相遇比例

  表格


Chinese text: This work was published before January 1, 1923, and is in the
public domain worldwide because the author died at least 100 years ago.

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