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Document Interface Control Document Departure Authorization
in NASA
Data Delivery Acknowledgement
in NASA
Digital Differential Analyzer
in NASA
122806122804122805
Similar to DDA
A/E - Architectural and Engineering
A/E - Activity Elements
A/F - Air-to-Fuel Ratio
A/FM - Air/Firing Mechanism
A/G - Air to Ground
A/L - AutoLand
A/L - AirLock
View all in NASA