《明史·志·卷十一》
又如前交正交是干宿，后交正交是翼宿，前交就多一个翼宿的宿度。
又如前交、正交是轸，后交、正交是翼，其前交多一翼。
For example, if the orthogonal sign before the handing over is Gan, and the orthogonal sign after the handing over is Yi, the orthogonal sign before the handing over has one more position of the Yi zodiac.