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Beijing Geodetic Coordinate System 1954
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Beijing Geodetic Coordinate System 1954
Encyclopedia
工学
大地起算数据
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Beijing Geodetic Coordinate System 1954
1954北京坐标系
在中华人民共和国成立初期,通过与苏联大地网联测,将中国的一等锁于1953年与苏联远东一等锁相连接,大地坐标是通过两国联测的呼玛、吉拉林基线网以及东宁基线网附近北朝阳堡、鲁明台按普兰尼斯-普拉尼维奇法,以角度为元素在高斯面上平差传算坐标,利用当时中国东北地区部分一等三角锁进行局部平差而确定的坐标系。
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Imperial Glossary of the Manchu Language
Imperial Granary
Imperial Guard
imperial guards
Imperial Guardsman
imperial history
Imperial Horses at Pasture after Wei Yan by Li Gonglin
Imperial Household Department
Imperial Irrigation District
Imperialist Powers and the Chinese Customs
Imperial Library Catalog of the Four Branches of Literature of the Kaiyuan Era of Tang
Imperial Library Catalog of the Jin Dynasty
Imperial Library Catalog of the Tang Dynasty
Imperially Commissioned Manchu Rituals for Sacrificing to Deities and to Heaven
imperial mandate
Imperial Mandate by The Emperor of Xiaowen
Imperial Mausoleum of Eastern Han Dynasty in Baicaopo
imperial medical academy
imperial medical service
Imperial Music Office
imperial news agency
imperial observatory
imperial open-air performance venue of Nanjing City
Imperial Painting Academy
Imperial Palace
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