| Acronym | Meaning |
 | IAHS | International Association Of Hydrological Sciences |
| DG | Data General |
| PICS | Positive Ion Composition Spectrometer |
| ESG | Empirical Study Group |
| HMMR | High Resolution Multifrequency Microwave Radiometer |
| DSDP | Deep Sea Drilling Project |
| PDAM | Point Data Access And Management |
| ANRHRD | Air Noise Radiation Health Research Division |
| OA | Office Automation |
| APS | Auxiliary Power System |
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