What does ETRF89 stand for?
ETRF89 stands for "European Terrestrial Reference Frame 1989"
How to abbreviate "European Terrestrial Reference Frame 1989"?
"European Terrestrial Reference Frame 1989" can be abbreviated as ETRF89
What is the meaning of ETRF89 abbreviation?
The meaning of ETRF89 abbreviation is "European Terrestrial Reference Frame 1989"
What does ETRF89 mean?
ETRF89 as abbreviation means "European Terrestrial Reference Frame 1989"
