| Acronym | Meaning |
 | DIA | Diameter |
| CAL | Calibrate |
| ESVS | Escape Suit Ventilation System |
| TBN | To Be Negotiated |
| TT | Total Time |
| ESCU | Extended Service And Cooling Umbilical |
| EHC | Electrical Heating Control |
| MDAS | Mission Data Acquisition System |
| EDC(M) | Electrochemical DePolarized CO (Module) |
| GP | General Purpose |
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