What does SIS stand for?
SIS stands for "Shuttle Interface Subsystem"
How to abbreviate "Shuttle Interface Subsystem"?
"Shuttle Interface Subsystem" can be abbreviated as SIS
What is the meaning of SIS abbreviation?
The meaning of SIS abbreviation is "Shuttle Interface Subsystem"
What does SIS mean?
SIS as abbreviation means "Shuttle Interface Subsystem"
