| Acronym | Meaning |
| HEDS | Human Exploration And Development Of Space |
| GCMFE | Glassy Carbon Mercury Film Electrode |
| SPMP | Scanning Proton Microprobe |
| SDY | Spin Drawn Yarn |
| CCSC | Charge And Configuration Self-consistency |
| FTM | Fault Tree Model |
| PWBA | Plane-Wave Born Approximation |
| LOPC | Laser Optical Particle Counter |
| KBES | Knowledge-based Expert System |
| ARC | Accelerating Rate Calorimetry |