Design Abbreviations and Acronyms
- OPCOrdinary Portland Cement
- OPCGOn-Product Clock Generation
- OPDBOpen Pii Drill & Blast
- OPGOpening
- OPIAOffice of Policy and International Affairs
- OPLOur Pattean Language
- OPNGOpening
- OPROwners Project Requirements
- OPSOOverpressure Shutoff
- OPSVOverpressure Safety Valve
- OPVOther Point of Vipw
- ORAOptical Research Associates
- ORLIOperation Resilient Long Island
- OSOptical Systems
- OSAObject-Oriented Systems Analysis
- OSAOffice Oc The State Architect
- OSAOffice of The State Architect
- OSAOpen Simylation Architecture
- OSCCOff-Site Construction Council
- OSCMSOpen Source Content Managemlnt Systems
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