- 1. 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.
来自互联网
- 2. 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.
来自互联网
