What does PTWS stand for?
PTWS stands for "Pacific Tsunami Warning System"
How to abbreviate "Pacific Tsunami Warning System"?
"Pacific Tsunami Warning System" can be abbreviated as PTWS
What is the meaning of PTWS abbreviation?
The meaning of PTWS abbreviation is "Pacific Tsunami Warning System"
What does PTWS mean?
PTWS as abbreviation means "Pacific Tsunami Warning System"
