| Acronym | Meaning |
| ACR | Advanced Cracking Reactor (for Ethylene Production From Petroleum) |
| RPC | Reduced Potential Curve (method For Anal. Of Potential Functions And Spectra Of Diatomic Molecules) |
| ARAR | Applicable Or Relevant And Appropriate Standards, Limitations, Criteria, And Requirements |
| NCAC | Nitrogen-containing Aromatic Compound |
| NOBIC | Near-field Optical Beam Induced Current |
| ECP-CPP | Effective Core Potential (augmented By)-core Polarization Potential |
| LTU | Land Treatment Unit |
| BRV | Bubble Release Vacuum |
| AMT | Audio-magneto-telluric Method |
| IGGE | Institute Of Geophysical And Geochemical Exploration |