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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
A/A - Air to Air
A/C - Aircraft
A/C - Associate Contractor
A/C - Air Conditioning
A/D - Analog-to-Digital
A/E - Architectural and Engineering
A/E - Activity Elements
View all in NASA