朔食

利用已经复原的结果，与现代理论值对比，得到宋代历法推算定朔和交食的精度。

The accuracy of the real new moon and eclipse of calendars in Song dynasty can be given in the way while contrasting the recovered results with the value of modern theory .

本文选择宋代历法中的朔闰与交食算法作为研究对象和出发点。

This paper chooses the algorithms of new moon , intercalary months arrangement and eclipse in calendars of Song dynasty as the research object and the starting point .

指出宋代朔闰和交食算法虽然忽略了一部分次要因素，但考虑了最主要的影响因素，因此总体上是合理的和正确的。

It points out that the algorithms of new moon , intercalary months arrangement and eclipse ignored some secondary factors , however , because it was considered as the most important factors , it is reasonable and partially correct .