What does OIS stand for?
OIS stands for "Orbiter Insertion Stage"
How to abbreviate "Orbiter Insertion Stage"?
"Orbiter Insertion Stage" can be abbreviated as OIS
What is the meaning of OIS abbreviation?
The meaning of OIS abbreviation is "Orbiter Insertion Stage"
What does OIS mean?
OIS as abbreviation means "Orbiter Insertion Stage"
