| Acronym | Meaning |
 | PLSS | Portable Life Support System |
| HTVL | Horizontal Takeoff Vertical Landing |
| APT | Automatic Picture Transmission |
| MOMV | Manned Orbital Maneuvering Vehicle |
| SLAR | Side-Looking Airborne Radar |
| GRTLS | Glide RTLS |
| SL-J | SpaceLab Japan |
| SPS | Solar Power Satellite |
| GIF | Graphics Interchange Format |
| TEA | Torque Equilibrium Attitude |
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