In the lunar calendar, the years are designated by the Heavenly Stems and Earthly Branches.
阴历用干支纪年。
School with the Han Chinese and the Heavenly Stems, Earthly Branches Jinian calculation.
并且学用汉族农历的天干、地支计算纪年。
The heavenly stems are associated with the sun's revolution which affects lives on the earth.
由此可见，十天干与太阳出没有关，而太阳的循环往复周期，对万物产生着直接的影响。
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