What does ER stand for?
ER stands for "Elliptical Reflector"
How to abbreviate "Elliptical Reflector"?
"Elliptical Reflector" can be abbreviated as ER
What is the meaning of ER abbreviation?
The meaning of ER abbreviation is "Elliptical Reflector"
What does ER mean?
ER as abbreviation means "Elliptical Reflector"
