| Acronym | Meaning |
 | GDSO | Ground Data Systems Officer |
| DDPS | Digital Data Processing System |
| AD | Aperture Door |
| NAC | Nacelle |
| T | Top |
| LCUG | Liquid Cooling Under Garment |
| ESS | Essential |
| ESVS | Escape Suit Ventilation System |
| OAST | Office Of Aeronautics And Space Technology |
| GA&CS | Ground Acquisition And Command Station |
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