| 1 | Last year's almanac is useless for this year. | |
| 2 | Last year! At a time when things change in the blink of an eye, the fool was still using last year's calendar! | |
| 3 | Song Injong days from the beginning of St. five years, the Tibetan calendar and Wong (that is, the lunar calendar) gradually. | |
| 4 | Place your intention for just a few minutes every day on the Mayan day instead of the linear Gregorian day. | |
| 5 | Then, we give the position error model generated by altitude error and ephemeris error. The conclusion shows that the large ephemeris error is equivalent to one minor range error after difference. |