| Acronym | Meaning |
 | PCA | Pneumatic Control Assembly |
| GLC | Generator Line Contractor |
| DDD | Display Decoder Drive |
| SCFH | Standard Cubic Feet Per Hour |
| SPC | Synoptic Properties Code |
| SIMS | Shuttle Imaging Microwave System |
| GIM | Generalized Information Management |
| SPF | Spacelab Processing Facility |
| SFTWE | Software |
| NPU | Nitrogen Purge Unit |
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