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Upright Perigee Stage
in NASA
Uninterruptible Power Supply
in NASA
Uninterruptible Power System
in NASA
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Similar to UPS
ABU - After Body Unit
ABUP - Auxiliary Back- Up Plate
ABV - Above
ABV - Air Bubble Vehicle
AC - Aerodynamic Center
AC - Comptroller Office
AC - Alternating Current
View all in NASA