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    Female scientist researching sample in petri dish under light microscope. — Stock Photo
    Female scientist researching sample in petri dish under light microscope.
    Close-up of scientist hand pouring reagent into flask for chemical research. — Stock Photo
    Close-up of scientist hand pouring reagent into flask for chemical research.
    Portrait of smiling technicians examining machine at factory — Stock Photo
    Portrait of smiling technicians examining machine at factory
    Chinese auto mechanic examining car engine — Stock Photo
    Chinese auto mechanic examining car engine
    Portrait of technician standing with arms crossed at meat factory — Stock Photo
    Portrait of technician standing with arms crossed at meat factory
    Workers reviewing paperwork in steel factory — Stock Photo
    Workers reviewing paperwork in steel factory
    African american male computer technician using tablet and working in server room. digital information storage and communication network technology. — Stock Photo
    African american male computer technician using tablet and working in server room. digital information storage and communication network technology.
    Male electrician students practicing in workshop — Stock Photo
    Male electrician students practicing in workshop
    Positive man in wireless headset standing with netbook and cables in server room — Stock Photo
    Positive man in wireless headset standing with netbook and cables in server room
    Prosthetic engineer reviewing the prosthesis of a patient and improving the material in his workshop — Stock Photo
    Prosthetic engineer reviewing the prosthesis of a patient and improving the material in his workshop
    Chinese auto mechanic talking with car owner — Stock Photo
    Chinese auto mechanic talking with car owner
    Team of scientist using laptop together in laboratory — Stock Photo
    Team of scientist using laptop together in laboratory
    From above of crop student with artificial dental model and bur learning training in dental treatments during class in laboratory — Stock Photo
    From above of crop student with artificial dental model and bur learning training in dental treatments during class in laboratory
    Close-up of auto mechanic making notes in car — Stock Photo
    Close-up of auto mechanic making notes in car
    Woman dentist attending to a patient — Stock Photo
    Woman dentist attending to a patient
    Black colleagues examining denture in laboratory — Stock Photo
    Black colleagues examining denture in laboratory
    Female technician operating machine in metal industry — Stock Photo
    Female technician operating machine in metal industry
    Crop customer putting credit card over contactless terminal to pay to mechanic for repair service in modern garage — Stock Photo
    Crop customer putting credit card over contactless terminal to pay to mechanic for repair service in modern garage
    Crop male mechanic in gloves repairing bicycle in modern workshop — Stock Photo
    Crop male mechanic in gloves repairing bicycle in modern workshop
    Close-up of repairing tool kept on old piano keyboard — Stock Photo
    Close-up of repairing tool kept on old piano keyboard
    Collection of black, green and yellow cables on a table — Stock Photo
    Collection of black, green and yellow cables on a table
    Scientist pipetting sample into tube for analytical testing in laboratory. — Stock Photo
    Scientist pipetting sample into tube for analytical testing in laboratory.
    Side view of crop anonymous male mechanic with screwdriver fixing wheel of electric scooter in workshop — Stock Photo
    Side view of crop anonymous male mechanic with screwdriver fixing wheel of electric scooter in workshop
    Man adjusting drum set in music studio — Stock Photo
    Man adjusting drum set in music studio
    Close-up of laboratory technician holding tube with blood sample in gloved hand. — Stock Photo
    Close-up of laboratory technician holding tube with blood sample in gloved hand.
    Close-up of scientist hand pouring reagent into flask for chemical research. — Stock Photo
    Close-up of scientist hand pouring reagent into flask for chemical research.
    Portrait smiling, confident male designer in workshop — Stock Photo
    Portrait smiling, confident male designer in workshop
    Engineer working in factory, holding check-list and supervising. — Stock Photo
    Engineer working in factory, holding check-list and supervising.
    Male scientist using laptop while holding test tube in laboratory — Stock Photo
    Male scientist using laptop while holding test tube in laboratory
    Two scientists providing research with scales in laboratory. — Stock Photo
    Two scientists providing research with scales in laboratory.
    Lineman getting ladder from truck at site — Stock Photo
    Lineman getting ladder from truck at site
    Dental tools at clinic interior — Stock Photo
    Dental tools at clinic interior
    Attentive male scientist experimenting in laboratory — Stock Photo
    Attentive male scientist experimenting in laboratory
    Close-up of female scientist using pipette in laboratory — Stock Photo
    Close-up of female scientist using pipette in laboratory
    Chinese male engineer working in industrial factory — Stock Photo
    Chinese male engineer working in industrial factory
    Chemist using nuclear magnetic resonance spectrometer in pharmaceutical laboratory. — Stock Photo
    Chemist using nuclear magnetic resonance spectrometer in pharmaceutical laboratory.
    Close-up of female technician using digital tablet at meat factory — Stock Photo
    Close-up of female technician using digital tablet at meat factory
    Male technician in safety goggles opening steaming cryostorage. — Stock Photo
    Male technician in safety goggles opening steaming cryostorage.
    Side view of craftsman in protective face mask wearing overalls and gloves working in workshop and soldering metal construction — Stock Photo
    Side view of craftsman in protective face mask wearing overalls and gloves working in workshop and soldering metal construction
    From above of crop anonymous beauty master trimming nail of woman with cutter during manicure procedure — Stock Photo
    From above of crop anonymous beauty master trimming nail of woman with cutter during manicure procedure
    Server room technician with laptop at panel — Stock Photo
    Server room technician with laptop at panel
    Male technician attaching wheel to bike while working in professional modern workshop — Stock Photo
    Male technician attaching wheel to bike while working in professional modern workshop
    Steelworkers using laptop in dark steel mill — Stock Photo
    Steelworkers using laptop in dark steel mill
    Female scientist checking plants in greenhouse — Stock Photo
    Female scientist checking plants in greenhouse
    Piano technician repairing vintage piano at workshop — Stock Photo
    Piano technician repairing vintage piano at workshop
    Young male master examining tire on bike wheel while working in professional repair service workshop — Stock Photo
    Young male master examining tire on bike wheel while working in professional repair service workshop
    Motherboard assembly in a bracket — Stock Photo
    Motherboard assembly in a bracket
    Midsection of carpenter polishing frame with polishing machine — Stock Photo
    Midsection of carpenter polishing frame with polishing machine
    Water quality inspector taking sample of water at suspected pollution site — Stock Photo
    Water quality inspector taking sample of water at suspected pollution site
    Man repairing an electronic device using soldering iron in service center — Stock Photo
    Man repairing an electronic device using soldering iron in service center
    Worker repairing machinery in steel factory — Stock Photo
    Worker repairing machinery in steel factory
    African american female computer technician using laptop working in server room. digital information storage and communication network technology. — Stock Photo
    African american female computer technician using laptop working in server room. digital information storage and communication network technology.
    Portrait of confident technician standing with arms crossed in metal industry — Stock Photo
    Portrait of confident technician standing with arms crossed in metal industry
    Crop unrecognizable professional male laboratory assistant in white robe and latex gloves pressing buttons on modern equipment — Stock Photo
    Crop unrecognizable professional male laboratory assistant in white robe and latex gloves pressing buttons on modern equipment
    Two technicians discussing over digital tablet at meat factory — Stock Photo
    Two technicians discussing over digital tablet at meat factory
    Interior of room in dental school — Stock Photo
    Interior of room in dental school
    Close-up of male scientist experimenting in laboratory — Stock Photo
    Close-up of male scientist experimenting in laboratory
    Female power engineer checking transducer at power station — Stock Photo
    Female power engineer checking transducer at power station
    Cropped image of Water department technician shutting fire hydrant to flush water pipes — Stock Photo
    Cropped image of Water department technician shutting fire hydrant to flush water pipes
    Close-up of man removing solder using solder sucker — Stock Photo
    Close-up of man removing solder using solder sucker