| Acronym | Meaning |
 | STT | Spacelab Transfer Tunnel |
| PDCS | Power Distribution And Control System (Subsystem) |
| VA | Velocity At Apogee |
| MAC | Military Airlift Command |
| HVPS | High Voltage Power Supply |
| GRID | Graphic Retrieval And Information Display |
| PKG | Package |
| TP&C | Thermal Protection And Control |
| OMIS | Operational Management Information System |
| MEG | Megohm |
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