Statws C
Pwnc:
Trafnidiaeth
Ffynhonnell:
TermCymru
Saesneg: Ordnance Datum
Cymraeg: Datwm Ordnans
Rhan ymadrodd
Enw, Gwrywaidd, Unigol
Diffiniad
It is a constant for each country and usually given by the Mean Sea Level.
Enw, Gwrywaidd, Unigol
It is a constant for each country and usually given by the Mean Sea Level.