"岁星十二年一周天"isaphraseinChinesethatliterallytranslatesto"Thetwelve-yearorbitofaplanetcompletesonerevolutionaroundthesun."Itisusedtorefertothetimeittakesforaplanettocompleteoneorbitaroundthesun,whichisapp
"岁星十二年一周天" is a phrase in Chinese that literally translates to "The twelve-year orbit of a planet completes one revolution around the sun." It is used to refer to the time it takes for a planet to complete one orbit around the sun, which is approximately equal to 12 Earth years for Jupiter, 29.5 Earth years for Saturn, and so on.
