| Acronym | Meaning |
| MRF | Maximum Retarding Force |
| VC | Vector Character |
| EAC | Energy Absorbing Capacity |
| EPDB | Experiment Power Distribution Box |
| INV | MGINVMGT Inventory Management |
| TGA | Trace Gas Analyzer |
| REO | Request |
| PTCS | Passive Thermal Control Section |
| CL | Close (Closed) |
| H | LTLHigh Level Test Language |