| 1 | Quite complicated. The Chinese used to count time by using Ganzhi. | |
| 2 | Ancient Chinese people invented the method to designate the years by the Heavenly Stems and Earthly Branches. | |
| 3 | Nevertheless, when did the way of numbering the years with Gan-Zhi start, different people have different versions. | |
| 4 | It gives us a method to know the conversion between Chinese era and the Gregorian calendar. | |
| 5 | In the fourth section, it is about the argumentation of ship type of the non-stop artery freighter in Yuan River based on Chaos optimization method. |