Displaying 1-4 of 4 result(s).
Pulses Per Minute
in NASA
Pulse Position Modulation
in NASA
Parts Per Million
in NASA
129178129177129176129179
Similar to PPM
ABS - Air Breathing System
ABS - Air Base Supply
ABT - Approximate Burn Time
ABU - Analog Back- Up
ABU - After Body Unit
ABUP - Auxiliary Back- Up Plate
ABV - Above
View all in NASA