grivation

listen to the pronunciation of grivation
الإنجليزية - التركية
GRiVASYON
(Askeri) GRİD DEĞİŞMESİ: Bak. "grid magnetic angle"
(Askeri) grid değişmesi
الإنجليزية - الإنجليزية
The angle, at any point on the surface of the Earth, between grid north and magnetic north