| Acronym | Meaning |
 | I | DAC Integrated Digital-Analog Converter |
| SEADS | Shuttle Entry Air Data System |
| PGU | Plant Growth Unit |
| NH3 | Ammonia |
| TLV | Transporter-Loader Vehicle |
| CSM | Common Support Module |
| OCR | Optical Character Recognition |
| OM | RS Operations And Maintenance Requirements Specification |
| NW | NASA Waiver |
| OMV | Oxygen Manual Valve |
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