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HADES - Main page → Ackr → In English
In English
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| ORS | Orbital Resupply System | In English | → Spaceflight engineering, astronautics |
| ORS | Orbital Refueling System | In English | → Spaceflight engineering, astronautics |
| ORS | Outer Root Sheath | In English | → 611 |
| ORSDI | Oak Ridge Selective Dissemination of Information | In English | → Computer science → Knowledge management |
| ORT | Operational Readiness Test | In English | → Management |
| ORT | Orbit Readiness Test | In English | → Spaceflight engineering, astronautics |
| ORU | Orbital Replacement Unit | In English | → Spaceflight engineering, astronautics |
| ORU | Orbital Replaceable Unit | In English | → Spaceflight engineering, astronautics |
| ORV | Orbital Research Vehicle | In English | → Spaceflight engineering, astronautics |
| OS | Operating System | In English | → Operating systems |
| OS | Operating Software | In English | → Software |
| OS | Orbiter CEI Specification | In English | → Spaceflight engineering, astronautics |
| OS | On-orbit Station | In English | → Spaceflight engineering, astronautics |
| OSA | Operational Support Area | In English | |
| OSA | Ordered-Subset Analysis | In English | |
| OSA | Oklahoma Sociological Association | In English | → Associations → Sociology |
| OSAJ | Optical Society of America Journal | In English | → Serial publications, periodicals → Optics |
| OSAJI | Optical Society of America Journal - Optics and Image Science | In English | → Serial publications, periodicals → Optics |
| OSB | Orientated Strand Board | In English | → Timber and woodworking industry |
| OSB | Order of Saint Benedict | In English | → Roman catholic church |
| OSC | Order of Saint Camillus | In English | → Roman catholic church |
| OSC | Orbital Sciences Corporation | In English | → Spaceflight engineering, astronautics |
| OSC | Optical Signatures Code | In English | |
| OSC | Operations Support Contract | In English | |
| OSC | Operations Support Center | In English | |
| OsCar | Osteoarthritis and Cartilage | In English | → Serial publications, periodicals → Medicine |
| OSCAR | Orbiting Satellite Carrying Amateur Radio | In English | → Spaceflight engineering, astronautics → Telecommunications |
| OSCE | Organization for Security and Cooperation in Europe = OSCE | Organisation pour la Sécurité et la Coopération en Europe | In French |
In English | → International relations |
| OSCF | Operations Support Computing Facility | In English | → Computer science |
| OSCN | Orbiter Specification Change Notice | In English | → Spaceflight engineering, astronautics |
| OSCR | Orbiter Software Change Request | In English | → Software → Spaceflight engineering, astronautics |
| OSCRS | Orbital Spacecraft Consumables Resupply System | In English | → Maintenance and logistics → Spaceflight engineering, astronautics |
| OSD | Office of the Secretary of Defense | In English | → 355 → Military engineering |
| OSDH | Orbiter System Definition Handbook | In English | → Spaceflight engineering, astronautics |
| OSDL | Open Source Development Lab | In English | → Software |
| OSDL | Open Source Development Labs | In English | → Software |
| OSE | Orbital Support Equipment | In English | → Spaceflight engineering, astronautics |
| OSE | Operating Support Equipment | In English | |
| OSE | Open System Environment | In English | → Computer science |
| OSERA | Ohio Scientific Education & Research Association (www.osera.org) | In English | → Associations → Research policy → Education |
| OSERS | Office of Special Education and Rehabilitative Services | In English | → Social welfare → Education |
| OSF | Orbiter Simulation Facility | In English | → Spaceflight engineering, astronautics |
| OSF | Open Software Foundation | In English | → Foundations → Software |
| OSH | Oblates of the Sacred Heart | In English | → Christianity |
| OSHA | Occupational Safety and Health Administration | In English | → Labour, labour economics → Public administration, government → Medicine |
| OSHA | Occupational Safety and Health Act | In English | → Labour, labour economics → Medicine |
| OSHA | Operating and Support Hazard Analysis | In English | |
| OSI | Office of Strategic Influence | In English | |
| OSI | Open Society Institute | In English | → Politics → Fundamental rights |
| OSI | Ordnance Survey Ireland | In English | |
| OSI | Open Source Initiative | In English | → Software |
| OSI | Open Systems Interconnection | In English | |
| OSID | Operating System Interface Definition | In English | → Operating systems → Human-computer interaction |
| OSID | Open Systems and Information Dynamics | In English | → Serial publications, periodicals |
| OSIM | Open Source In Morocco | In English | → Organizations and associations → Software |
| OSITOP | Open Systems Interconnection/Technical and Office Protocols | In English | |
| OSJaJ | Oceanographical Society of Japan Journal | In English | → Serial publications, periodicals → Marine research, oceanography |
| OSM | On-Orbit Spares Model | In English | → Spaceflight engineering, astronautics |
| OSM | Operational Status Monitoring | In English | → Management |
| OSM | Orbiter Service Module | In English | → Spaceflight engineering, astronautics |
| OSMP | Operational Support Maintenance Plan | In English | → Maintenance and logistics |
| OSO | Orbiting Solar Observatory | In English | → Observatories → Spaceflight engineering, astronautics |
| OSO | Ocean Systems Operation | In English | |
| OSOP | Orbiter Systems Operating Procedure | In English | → Spaceflight engineering, astronautics |
| OSPF | Open Shortest Path First | In English | → Internet |
| OSR | Optical Surface Reflector | In English | → Optics |
| OSR | Operations Support Room | In English | |
| OSRBD | Operational Software Reliability Benchmark Development | In English | → Software |
| OSS | Orbiting Space Station | In English | → Spaceflight engineering, astronautics |
| OSS | Office of Space Sciences | In English | → Astronomy → Spaceflight engineering, astronautics |
| OSS | Optics Subsystem | In English | → Optics |
| OSSA | Office of Space Sciences and Applications | In English | → Astronomy → Spaceflight engineering, astronautics |
| OSSA | Office of Space Science and Applications | In English | → Astronomy → Spaceflight engineering, astronautics |
| OSSA | Oxfordshire School Sports Association | In English | → Associations → Sport, physical exercises |
| OSSAD | Office Support Systems Analysis and Design | In English | |
| OSSE | Oriented Scintillation Spectrometer Experiment | In English | → Analytical chemistry |
| OSSIU | Orbiter-Space Station Interface Unit | In English | → Spaceflight engineering, astronautics |
| OSSRH | Orbiter Subsystem Requirements Handbook | In English | → Spaceflight engineering, astronautics |
| OSST | Order of the Most Holy Trinity | In English | → Roman catholic church |
| OST | Orbiter Support Trolley | In English | → Spaceflight engineering, astronautics |
| OST | Office of the Secretary of Transportation | In English | → Central administration → Transport and postal services |
| OSTA | Office of Space and Terrestrial Applications | In English | → Astronomy → Spaceflight engineering, astronautics |
| OSTC | Open Systems Testing Consortium | In English | |
| OSTDS | Office of Space Tracking and Data Systems | In English | → Data → Spaceflight engineering, astronautics |
| OSTF | Off-Site Test Facility | In English | |
| OSTO | Office of Space Transportation Operations | In English | → Spaceflight engineering, astronautics |
| OSTP | Orbiting System Test Plan | In English | → Spaceflight engineering, astronautics |
| OSTP | Office of Science and Technology Policy | In English | → Research policy → Engineering, technology |
| OSTS | Office of Space Transportation Systems | In English | → Spaceflight engineering, astronautics |
| OT | Occupational Therapy | In English | → Labour, labour economics → Medicine |
| OT&E | Operational Test and Evaluation | In English | |
| OTA | Operational Trajectory Analysis | In English | → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| OTA | Optical Telescope Assembly | In English | → Astronomy → Optics |
| OTB | Orbiting Tanker Base | In English | → Spaceflight engineering, astronautics |
| OTC | Optical Test Chamber | In English | → Optics |
| OTC | Orbiter Test Conductor | In English | → Spaceflight engineering, astronautics |
| OTC | Over the Counter | In English | → Pharmacology, toxicology |
| OTD | Operational Technical Documentation | In English | → Engineering, technology |
| OTD | Orbiter Test Director | In English | → Spaceflight engineering, astronautics |
| OTDA | Office of Tracking And Data Acquisition | In English | → Data |
| OTE | Orbital Transfer Equipment | In English | → Spaceflight engineering, astronautics |
| OTE | Optical Test and Evaluation | In English | |
| OTEC | Operational Test and Evaluation Center | In English | |
| OTF | Operational Time Fraction | In English | |
| OTF | Optical Transfer Function | In English | → Optics |
| OTFE | Oscillatory Thermocapillary Flow Experiment | In English | |
| OTHB | Over-The-Horizon Backscatter | In English | |
| OTK | Oxidizer Tank | In English | |
| OTL | Ordnance Test Laboratory | In English | → Research institutes |
| OTL | OSI (Open Systems Interconnection) Testing Liaison | In English | |
| OTL | Office of Technology Licensing | In English | → Engineering, technology |
| OTL | Online Tamil Lexicon | In English | → Dictionaries → Linguistics |
| OTLC | Orbiter Time Line Constraint | In English | → Spaceflight engineering, astronautics |
| OTM | Output Transformation Matrix | In English | |
| OTOS | Orbit-To-Orbit Stage | In English | → Spaceflight engineering, astronautics |
| OTP | Operational Test Procedure | In English | → Engineering, technology |
| OTP | Operations Turnaround Plan | In English | → Engineering, technology |
| OTP | Omega Translation Process | In English | |
| OTR | Operating Time Record | In English | |
| OTS | Orbital Test System | In English | → Spaceflight engineering, astronautics |
| OTS | Orbital/Orbital Transfer System | In English | → Spaceflight engineering, astronautics |
| OTT | Optional Team Targeting | In English | |
| OTV | Operational Television | In English | → Telecommunications |
| OTV | Orbit Test Vehicle | In English | → Spaceflight engineering, astronautics |
| OTV | Orbital Transfer Vehicle | In English | → Spaceflight engineering, astronautics |
| OUP | Oxford University Press | In English | → Higher education, universities → Graphic industries, printing, publishing |
| OUT | Orbiter Utility Tray | In English | → Spaceflight engineering, astronautics |
| OV | Orbiter Vehicle | In English | → Spaceflight engineering, astronautics |
| OV | Oxygen Vent | In English | |
| OV | Order Voucher | In English | |
| OV | Orbital Vehicle | In English | → Spaceflight engineering, astronautics |
| OVCAD | OVarian CAncer Diagnosis | In English | → Diagnostics → Oncology → Gynaecology |
| OVCO | Operational Voice Communication Office | In English | → Telecommunications |
| OVDS | Oxidizer Vent Drain System | In English | |
| OVEI | Orbiter Vehicle End Item | In English | → Spaceflight engineering, astronautics |
| OVI | Operational Validation Inspection | In English | → Management → Engineering, technology |
| OVI | Optical Variable Ink | In English | |
| OVL | ONGC (Oil and Natural Gas Corporation) Videsh Limited (www.ongcvidesh.com) | In English | → Earth sciences → Mining |
| OVS | Observation of Variable Stars | In English | → Serial publications, periodicals → Astronomy |
| OW | Optical Window | In English | → Optics |
| OWD | One-Way Doppler | In English | → Optics |
| OWDE | One-Way Doppler Extraction | In English | → Optics |
| OWF | Optimum Working Frequency | In English | → Telecommunications |
| OWL | Web Ontology Language | In English | → Data → Programming languages |
| OWTRAD | Old World Traditional Trade Routes (Project) | In English | → History |
| OXCs | Optical cross connects | In English | → Telecommunications |
| OxfOO | Oxford University Observatory Observations | In English | → Serial publications, periodicals → Astronomy |
| OxM | Oxidation of Metals | In English | → Serial publications, periodicals → Chemistry → Metallurgy |
| OYCF | Overseas Young Chinese Forum | In English | → Organizations and associations |
| OzSE | Ozone: Science and Engineering | In English | → Serial publications, periodicals → Meteorology, climatology |
| P | Proline = P | প্রোলিন | In Bengali = P | Prolina | In Catalan = P | Prolin | In Danish = P | Prolin | In German = P | Prolina | In Spanish = P | Prolino | In Esperanto = P | Proline | In French = P | 프롤린 | In Korean = P | Prolin | In Croatian = P | Prolin | In Indonesian = P | Prolina | In Italian = P | פרולין | In Hebrew = P | Prolīns | In Latvian = P | Prolin | In Letzeburgesh = P | Prolinas | In Lithuanian = P | Prolin | In Hungarian = P | Proline | In Dutch = P | プロリン | In Japanese = P | Prolina | In Polish = P | Prolina | In Portuguese = P | Пролин | In Russian = P | Proliini | In Finnish = P | Prolin | In Swedish = P | Prolin | In Turkish = P | Пролін | In Ukrainian = P | 脯氨酸 | In Chinese |
In English | → Biochemistry, biophysics |
| P | Phosphorus = P | Fosfor | In Dutch = P | Phosphor | In German = P | Phosphore | In French = P | Fósforo | In Esperanto |
In English | → Chemistry |
| P&C | Procurement and Contracts | In English | → 3474 |
| P&D | Panels and Displays | In English | → Human-computer interaction |
| P&E | Pricing and Estimating | In English | → Prices |
| P&E | Propellant and Explosive | In English | → Spaceflight engineering, astronautics → Chemical technology |
| P&I | Performance and Interface | In English | → Human-computer interaction |
| P&LRP | Productivity and Long-Range Planning | In English | |
| P&M | Production and Maintenance | In English | → Maintenance and logistics |
| P&MD | Productivity and Manufacturing Development | In English | → Maintenance and logistics |
| P&P | Policies and Procedures | In English | → Management |
| P&P | Past and Present | In English | → History |
| P&PQ | Productivity and Product Quality | In English | → Quality management |
| P&PQI | Productivity and Product Quality Improvement | In English | → Quality management |
| P&PQIC | Productivity and Product Quality Improvement Council | In English | → Quality management |
| P&Q | Productivity and Quality | In English | → Quality management |
| P&R | Performance and Resources | In English | → Maintenance and logistics |
| P&SM | Procurement and Subcontract Management | In English | → 3474 |
| P&SS | Planetary and Space Science | In English | → Serial publications, periodicals → Astronomy |
| P&TE | Packaging and Transport Engineering | In English | → Transport and postal services |
| P&VE | Propulsion and Vehicle Engineering | In English | → Vehicle engineering |
| P-HUS | Pneumococcal-associated Hemolytic Uremic Syndrome | In English | → Blood and circulatory system → Pathology |
| P2I | Preplanned Productivity Increase | In English | → Management |
| P2P | Peer-to-Peer | In English | → Networks, communication |
| P3I | Preplanned Product Improvement | In English | → Management |
| P3I | Preplanned Production Improvement | In English | → Management |
| P3P | Platform for Privacy Preferences | In English | → Networks, communication → Telecommunications |
| P3S | Power Systems Supports and Services | In English | → Electrical engineering |
| PA | Parapsychological Association (www.parapsych.org) | In English | → Associations → Psychology → Occult sciences |
| PA | Popular Astronomy | In English | → Serial publications, periodicals → Astronomy |
| PA | Polyamide | In English | → Plastic industry → Chemicals → Chemistry |
| PAA | Problem Assessment Area | In English | |
| PAA | Pan American Airlines | In English | → Transport and postal services |
| PAAF | Property Appraisers Association of Florida (www.paaf.net) | In English | → Associations → 332 |
| PAAR | Professional Association of Andrologists of Russia | In English | → Associations → Sexual problems → Urology |
| PAAS | Publications of the American Astronomical Society | In English | → Serial publications, periodicals → Astronomy |
| PAB | Publications of The Astrophysics Branch Ottawa | In English | → Serial publications, periodicals → Astronomy |
| PABei | Progress in Astronomy | In English | → Serial publications, periodicals → Astronomy |
| PABF | Precision Air Bearing Facility | In English | |
| PAC | Program Analyzer Console | In English | |
| PAC | Problem Action Center | In English | |
| PAC | Probe Aerodynamic Center | In English | → Aerodynamics |
| PAC | Pressure Alpha Center | In English | |
| PAC | Postaward Conference | In English | |
| PAC | Programme Advisory Commitee | In English | |
| PACA | Payload Accommodation Configuration Assessment | In English | |
| PACAS | Personnel Access Control Accountability System | In English | |
| PACC | Problem Action Control Center | In English | |
| PACCS | Postattack Command Control System | In English | |
| PACE | Product Acceptance Configuration Element | In English |
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