The National Time Service Center, the Chinese Academy of Sciences (中国科学院国家授时中心), formerly known as Shaanxi Astronomical Observatory (陕西天文台), was established...
9 KB (382 words) - 20:04, 30 August 2024
Astronomical Observatory (中国科学院上海天文台) Purple Mountain Observatory (中国科学院紫金山天文台) National Time Service Center (中国科学院国家授时中心), former Shaanxi Astronomical...
9 KB (930 words) - 11:00, 20 January 2024