清代钦天监是专门研究天文历法的重要机构。

The Tmperial Board of astronomy was a research institution on astronomy and calendar in the Qing Dynasty.

youdao

清代钦天监是专门研究天文历法的重要机构。

The Tmperial Board of astronomy was a research institution on astronomy and calendar in the Qing Dynasty.

youdao