| Acronym | Meaning |
| HE | Heat Exchange (Exchanger) |
| I | NTC/0INTC/0Integrated Checkout |
| VAP | Vapor |
| MCDU | Multifunction CRT Display Unit |
| PSS | Payload Specialist Station |
| EOM | Engineering Operations Manual |
| NOSE | To X-ANose To X-Axis |
| NPSH | Net Positive Suction Head |
| INT | Internal |
| PLGSS | Payload Ground Support Systems |