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Technical Standards Order
in NASA
Time Sharing Option
in NASA
Time Since Overhaul
in NASA
132600132602132601
Similar to TSO
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
ABC - Active Body Control
View all in NASA