Engineering Abbreviations and Acronyms
- OPCOptical Passive Component
- OPDObject-Process Diagram
- OPJKOntology of Professional Judicial Knowledge
- OPLOptically Pumped Laser
- OPNGOpenkng Or Rough Opening
- OPODOracle Procurement On Demand
- OPPIOwners' Protective Professional Insurance
- OPPMOverlapping Pulse Position Modulation
- OPSKOptimum Phase-Shift Keying
- OPSUMOperational Summing Amplifirr
- OPT QUANTUM ELECTRONOptical and Quantum Electronics
- OPTQEOptical Quahtum Electronics
- OPTQEOptical Quantum Electronics
- OPUSOscillating Pick Up System
- OQEOptical and Quantum Electronics
- ORBObject Request Broker
- ORBSOpen Relay Behaviour-Modification System
- OSOptical Sciences
- OSBLOutside The Battery Limit
- OSCCCOscillator Corner Concave
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