| Acronym | Meaning |
 | SPL | Sound Pressure Level |
| CPSS | Cold Plate Support Structure |
| PLSS | Primary Life SuPport Subsystem |
| CAL | Cornell Aeronautical Laboratory |
| MSS | Mission Specialist Station |
| HPR | Hydrogen Pressure Regulator |
| EE | End Effector |
| OPF | Orbiter Processing Facility |
| HBW | Hot Bridge Wire |
| TIS | Test Interface Subsystem |
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