The astronomical instruments of the Ming dynasty such as celestial globe, plane sundial, rotary stardial and others have been transfered to the Nanjing Purple Observatory and the Nanjing Museum.是什么意思_The astronomical instruments of the Ming dynasty such as celestial globe, plane sundial, rotary stardial and others have been transfered to the Nanjing Purple Observatory and the Nanjing Museum.在线翻译_英语_读音_用法_例句