明·万民英 · Chapter 937 / 1491
卷19·天乙紫炁星
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Chapter 937 of 1491
总龟算法：置积日减一千二百八十八，以一万二百二十八大数除之，不尽者为残分，转一当十，以二百八十为一度，二十八为一分，次下除为秒。
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