| Acronym | Meaning |
 | VTR | Video Tape Recorder |
| GCF | Ground Communications Facility |
| SUMC | Space Ultrareliable Modular Computer |
| USB | Upper Side Band |
| CHR | Cooper-Harper Rating |
| ICAO | International Civil Aviation Organization |
| GOX | GaGOXGaseous Oxygen (GO |
| STIL | Software Test And Integration Laboratory |
| MSC | Master Sequence Controller |
| PH | Hydrogen-Ion Concentration (Alkalinity) |
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