| Acronym | Meaning |
 | I | ECM Induced Environment Contamination Monitor |
| DFRN | PRESSDifferential Pressure |
| HGR | Hangar |
| EPL | Electronic |
| M/S | Measurement Stimuli |
| MEDICS | Medical Information Computer System |
| UC | Unsatisfactory Condition |
| LSTE | Launch Site Transportation Equipment |
| COBE | Cosmic Background Explorer |
| IAV | Inventory Adjustment Voucher |
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