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Program Performance Baseline
in NASA
Parts per Billion p/b preferred
in NASA
129162129163
Similar to PPB
AAFE - AeroAssist Flight Experiment
AAFM - Acoustic Atomic Force Microscopy
AAR - After Action Review
AARL - Aeronautical and Astronautical Research Laboratory
AAV - Air Admittance Valve
AAV - Aerospace Audio- Visual
ABA - Astronaut Boarding Aircraft
View all in NASA