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Data Distribution Center
in NASA
Defense Documentation Center
in NASA
D C-to- D C Converter
in NASA
Digital Data Cell
in NASA
122809122810122808122811
Similar to DDC
ABS - Air Base Supply
ABT - Approximate Burn Time
ABU - Analog Back- Up
ABU - After Body Unit
ABUP - Auxiliary Back- Up Plate
ABV - Above
ABV - Air Bubble Vehicle
View all in NASA