What does SIR stand for?
SIR stands for "Signal to Repeater"
How to abbreviate "Signal to Repeater"?
"Signal to Repeater" can be abbreviated as SIR
What is the meaning of SIR abbreviation?
The meaning of SIR abbreviation is "Signal to Repeater"
What does SIR mean?
SIR as abbreviation means "Signal to Repeater"