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Operational Ready Data
in NASA
Operational Readiness Date
in NASA
Operational Requirements Document
in NASA
Orbital Requirements Document
in NASA
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Similar to ORD
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