| Acronym | Meaning |
| HCCI | Homogeneous Charge Compression Ignition |
| TO | Toxic Organic |
| BCPCT | Best Conventional Pollutant Control Technology |
| EDXRS | Energy-dispersive X-ray Spectrometry |
| SEELFS | Surface Extended-energy-loss Fine-structure |
| IBAD | Ion-Beam-Assisted Deposition |
| EBA | Expanded Bed Adsorption |
| MISR | Multi-angle Imaging Spectroradiometer |
| USMAR | Upflow Static-Media Anaerobic Reactor |
| VACE | Vacancy Affinity Capillary Electrophoresis |