 <translate> Ajụjụ: N'ime UK, Ordnance Datum (elu 0 mita na UK map) bụ nkezi oke osimiri tụrụ na Newlyn na Cornwall n'etiti 1915 na 1921. Tupu afọ 1921, ebe a na-akpọ ya bụ MSL na Victoria Dock, Liverpool.  Ajụjụ: Ebee ka a na-atụ ọkwa oke osimiri na UK? Ka anyị nye stream nke nsụhọ n'okpuru <hau> Q: A cikin Burtaniya, Ordnance Datum (tsayin mita 0 a kan taswirar Burtaniya) shine matsakaicin matakin teku da aka auna a Newlyn a Cornwall tsakanin 1915 da 1921. Kafin 1921, ma'aunin ya kasance MSL a Victoria Dock, Liverpool.  Tambaya: a ina ake auna matakin teku a Burtaniya? Bari mu ba da rafi na sani a kasa 