| Acronym | Meaning |
 | SDF | System Development Facility (Breadboard) |
| R/S | Range Safety |
| SV | Safety Valve |
| MSO | Model For Spare(s) OPtimization |
| SCCM | Standard Cubic Centimeters Per Minute |
| SSI | Significant Structural Item |
| CISS | Centaur Integrated Support Structure |
| SMG | Superconduction Magnetic Energy Storage |
| CM&S | Communications Maintenance And Storage |
| DDA | Digital Differential Analyzer |
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