What does Rr stand for?
Rr stands for "Rapid Rectilinear"
How to abbreviate "Rapid Rectilinear"?
"Rapid Rectilinear" can be abbreviated as Rr
What is the meaning of Rr abbreviation?
The meaning of Rr abbreviation is "Rapid Rectilinear"
What does Rr mean?
Rr as abbreviation means "Rapid Rectilinear"
