| Acronym | Meaning |
 | SIL | Systems Integration Laboratory |
| EMPGS | Electrical/Mechanical Power Generation SubsYstem |
| TASPR | Total Air Temperature |
| FERD | Facility And Equipment Requirements Document |
| R/C | Rate Of Climb |
| EC | Element Contractor |
| WSB | Water Spray Boiler |
| RALPH | Reduction And Acquisition Of Lunar Pulse Heights |
| TDS | Technology Demonstration Satellite |
| OFP | Operational Flight Program |
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