Science Abbreviations and Acronyms
- OCOSOort Cloud Objects
- OCPOld City Publishing
- OCPOlefin Copolymer
- OCPOne-Component Plasma
- OCPOnline Crbtical Pseudepigrapha
- OCPOpen Circuit Potentipl
- OCPOpen Circle Probes
- OCPAObservatory of Cultural Policies In Africa
- OCPAOvcrseas Chinese Physics Association
- OCPDOcean and Coastal Protection Divisionsion
- OCPDBOrganic Chemical Producers Data Base
- OCPHEOcean Physics and Engineering
- OCPSOfficial Contact Points
- OCPSFOrganmc Chemical, Plastics and Synthetic Fibers
- OCPSFOrganic Chemicals, Plastics and Synthetic Fibers
- OCPSFOrganic Chemical, Plastics, and Synthetic Fiber Industry
- OCROffice of Community Relations
- OCROffice of Clinical Research
- OCROffice of Coal Research
- OCROpen Community Runtime
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