abstract of zenith distance

apparent zenith distance

circummeridian zenith distance

double zenith distance

meridian zenith distance

true zenith distance

distance between centres of lines；distance between centers of tracks；midway between tracks

distance offset distance

altitude correction of zenith difference

angle at zenith

angle of zenith

astronomical zenith

atmosphere zenith delay

floating zenith telescope

geocentric zenith

geodetic zenith

gingival zenith

horizontal zenith telescope

Ibuprofen Pseudoephedrine Hydrochloride Compound-Zenith Heilen