What does URB stand for?
URB stands for "unoccupied repeat b"
How to abbreviate "unoccupied repeat b"?
"unoccupied repeat b" can be abbreviated as URB
What is the meaning of URB abbreviation?
The meaning of URB abbreviation is "unoccupied repeat b"
What does URB mean?
URB as abbreviation means "unoccupied repeat b"
