《明史·志·卷十一》
《授时历》盈缩差在日躔即太阳运行部分，迟疾差在月离即月亮运行部分，定朔、经朔分为两处。
《授时》盈缩差在日躔，迟疾差在月离，定朔、经朔离为二处。
The surplus and shortage in the ``Shoushi calendar`` are the part of the day, and the difference between fast and slow is the part of the month, and the fixed new moon and the new moon are divided into two places.