What does PTR stand for?
PTR stands for "Pulse Tube Refrigerator"
How to abbreviate "Pulse Tube Refrigerator"?
"Pulse Tube Refrigerator" can be abbreviated as PTR
What is the meaning of PTR abbreviation?
The meaning of PTR abbreviation is "Pulse Tube Refrigerator"
What does PTR mean?
PTR as abbreviation means "Pulse Tube Refrigerator"
