What does DDO stand for?
DDO stands for "Dual Docked Operation (US NASA)"
How to abbreviate "Dual Docked Operation (US NASA)"?
"Dual Docked Operation (US NASA)" can be abbreviated as DDO
What is the meaning of DDO abbreviation?
The meaning of DDO abbreviation is "Dual Docked Operation (US NASA)"
What does DDO mean?
DDO as abbreviation means "Dual Docked Operation (US NASA)"
