astro-geodetic leveling

geodetic levelling

Leveling Adjuster， Leveling Feet

2000 Chinese Geodetic Coordinate System CGCS2000

2000 National Geodetic Coordinate System

80 geodetic coordinates

84 geodetic coordinates

acimuth geodetic

astro geodetic net adjustment

astro geodetic network

astro-geodetic datum orientation

astro-geodetic deflection

astro-geodetic deflection of the vertical

astro-geodetic net adjustment

Astro-geodetic Network

astro-geodetic undulation

astrogeodetic net adjustment

basic geodetic survey

Beijing Geodetic Coordinate System 1954