天文测量、大地测量、卫星大地测量、重力测量的数据和图件；

Data and drawings of astronomical survey, geodetic survey, geodetic survey by satellite, and gravity measurement;

youdao

天文测量、大地测量、卫星大地测量、重力测量的数据和图件；

Data and drawings of astronomical survey, geodetic survey, geodetic survey by satellite, and gravity measurement;

youdao