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Time To Circularize Orbit
in NASA
Telemetry, Tracking, and Command
in NASA
Tunnel Thermal Control
in NASA
132630132631132629
Similar to TTC
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