https://zhidao.baidu.com/question/429795836325466052.html?qbl=relate_question_0&word=%B3%C9%B6%BC%D7%F8%B1%EA%CF%B5%D7%AA%BB%BB%B2%CE%CA%FD
https://zhidao.baidu.com/question/88213284.html
主题：成都独立坐标是怎么来的？
回帖：WGS84坐标、WGS72坐标、54坐标、80坐标的区别
https://zhidao.baidu.com/question/429795836325466052.html?qbl=relate_question_0&word=%B3%C9%B6%BC%D7%F8%B1%EA%CF%B5%D7%AA%BB%BB%B2%CE%CA%FD
https://zhidao.baidu.com/question/88213284.html
https://zhidao.baidu.com/question/429795836325466052.html?qbl=relate_question_0&word=%B3%C9%B6%BC%D7%F8%B1%EA%CF%B5%D7%AA%BB%BB%B2%CE%CA%FD
https://zhidao.baidu.com/question/88213284.html