| Acronym | Meaning |
 | SLM | Sound Level Meter |
| BBC | Before Business Clearance |
| NF | NNF Natural Flood |
| CWA | Caution And Warning Annunciator |
| PROX | Proximity |
| SL | Sea Level |
| LCO | MMCUniform Central Number |
| NSD | NASA Standard Detonator |
| MECR | Maintenance Engineering Change Request |
| MBC | Maximum Breathing Capacity |
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