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    Students examining condenser coil on refrigeration unit in HVAC classroom — Stock Photo
    Students examining condenser coil on refrigeration unit in HVAC classroom
    Female power engineer adjusting water valves at power plant — Stock Photo
    Female power engineer adjusting water valves at power plant
    Close-up of male hands repairing circuit board. — Stock Photo
    Close-up of male hands repairing circuit board.
    Engineer working in factory, holding check-list and supervising. — Stock Photo
    Engineer working in factory, holding check-list and supervising.
    Industrial pipes in oil refinery structure of factory — Stock Photo
    Industrial pipes in oil refinery structure of factory
    Engineer in electric power plant inspecting manual valve in condenser room piping — Stock Photo
    Engineer in electric power plant inspecting manual valve in condenser room piping
    Construction workers using torque wrench to secure water main section with bolts — Stock Photo
    Construction workers using torque wrench to secure water main section with bolts
    From below middle aged Hispanic foreman in in hardhat and waistcoat browsing on smartphone looking away while standing near solar power station — Stock Photo
    From below middle aged Hispanic foreman in in hardhat and waistcoat browsing on smartphone looking away while standing near solar power station
    From below middle aged Hispanic foreman in in hardhat and waistcoat browsing on smartphone looking away while standing near solar power station — Stock Photo
    From below middle aged Hispanic foreman in in hardhat and waistcoat browsing on smartphone looking away while standing near solar power station
    Lab technician carrying cell-based testing kit in bioengineering laboratory. — Stock Photo
    Lab technician carrying cell-based testing kit in bioengineering laboratory.
    Close-up of an opened mobile phone in service centre — Stock Photo
    Close-up of an opened mobile phone in service centre
    Side view of engineer servicing aircraft engine near hangar — Stock Photo
    Side view of engineer servicing aircraft engine near hangar
    Close-up of man soldering chip on mobile phone in repair centre — Stock Photo
    Close-up of man soldering chip on mobile phone in repair centre
    Technicians working in sealed and sterile biomedical laboratory. — Stock Photo
    Technicians working in sealed and sterile biomedical laboratory.
    Various tools in toolbox at repair garage — Stock Photo
    Various tools in toolbox at repair garage
    Cardboard boxes on shelves in warehouse, Sumner, Washington, USA — Stock Photo
    Cardboard boxes on shelves in warehouse, Sumner, Washington, USA
    Close-up of motorcycle chain in industrial mechanical workshop — Stock Photo
    Close-up of motorcycle chain in industrial mechanical workshop
    Industrial landscape with sea bay and port cranes — Stock Photo
    Industrial landscape with sea bay and port cranes
    Cranes on commercial dock in Dunkirk, France — Stock Photo
    Cranes on commercial dock in Dunkirk, France
    SUV in a large repair workshop or garage. — Stock Photo
    SUV in a large repair workshop or garage.
    Close-up of bulldozer track on mud at construction site — Stock Photo
    Close-up of bulldozer track on mud at construction site
    Man working with blueprints in the office — Stock Photo
    Man working with blueprints in the office
    Contemporary skyscrapers of New York City seen from river against blue cloudy sky in sunny day — Stock Photo
    Contemporary skyscrapers of New York City seen from river against blue cloudy sky in sunny day
    Engineer talking on a walkie talkie at a wind farm — Stock Photo
    Engineer talking on a walkie talkie at a wind farm
    Industrial landscape with sea bay and port cranes — Stock Photo
    Industrial landscape with sea bay and port cranes
    High angle of New York airport with airplanes with jet bridge and machinery on ground in bright sunlight — Stock Photo
    High angle of New York airport with airplanes with jet bridge and machinery on ground in bright sunlight
    Mike OCallaghan-Pat Tillman Memorial — Stock Photo
    Mike OCallaghan-Pat Tillman Memorial
    Drilling machinery in cloudy landscape with forest. — Stock Photo
    Drilling machinery in cloudy landscape with forest.
    Group of workers in uniform and helmets installing photovoltaic panels on roof of wooden construction near house — Stock Photo
    Group of workers in uniform and helmets installing photovoltaic panels on roof of wooden construction near house
    Flowing water through Oldman River Dam in Southern Alberta, Canada — Stock Photo
    Flowing water through Oldman River Dam in Southern Alberta, Canada
    Pre-adolescent blogger girl soldering circuit board of electric toy car in office. — Stock Photo
    Pre-adolescent blogger girl soldering circuit board of electric toy car in office.
    View of the bridge in the mountains on nature background — Stock Photo
    View of the bridge in the mountains on nature background
    High angle view of engineer servicing aircraft engine near hangar — Stock Photo
    High angle view of engineer servicing aircraft engine near hangar
    Engineer servicing aircraft engine near hangar on a sunny day — Stock Photo
    Engineer servicing aircraft engine near hangar on a sunny day
    Side view of a concentrated businessman reading a blueprint plan in office against bright sunlight next to big windows showing the city in the background — Stock Photo
    Side view of a concentrated businessman reading a blueprint plan in office against bright sunlight next to big windows showing the city in the background
    Male engineers with laptop examining parts in factory — Stock Photo
    Male engineers with laptop examining parts in factory
    Close-up of automobile tools in repair garage — Stock Photo
    Close-up of automobile tools in repair garage
    Close-up of rags at industrial mechanical workshop — Stock Photo
    Close-up of rags at industrial mechanical workshop
    Cardboard boxes on conveyor belt in factory or warehouse. — Stock Photo
    Cardboard boxes on conveyor belt in factory or warehouse.
    Female Asian scientist examining plants in laboratory. — Stock Photo
    Female Asian scientist examining plants in laboratory.
    Technicians preparing and checking samples in manufacturing bioengineering laboratory. — Stock Photo
    Technicians preparing and checking samples in manufacturing bioengineering laboratory.
    Technicians preparing samples in manufacturing bioengineering laboratory. — Stock Photo
    Technicians preparing samples in manufacturing bioengineering laboratory.
    High angle view of male Asian architect working on office building model with his laptop and tools in a modern office — Stock Photo
    High angle view of male Asian architect working on office building model with his laptop and tools in a modern office
    Abstract Biotechnology, conceptual illustration. — Stock Photo
    Abstract Biotechnology, conceptual illustration.
    CRISPR-Cas9 gene editing complex in DNA and cells, conceptual illustration. — Stock Photo
    CRISPR-Cas9 gene editing complex in DNA and cells, conceptual illustration.
    Conveyor belt at quarry — Stock Photo
    Conveyor belt at quarry
    Woman talking on phone — Stock Photo
    Woman talking on phone
    Cropped image of blacksmith in protective gloves forging with hammer on anvil in industry. forging, metalwork and manufacturing industry. — Stock Photo
    Cropped image of blacksmith in protective gloves forging with hammer on anvil in industry. forging, metalwork and manufacturing industry.
    Interior of spacious workshop with large metal walls and construction inside of industrial factory in Asturias — Stock Photo
    Interior of spacious workshop with large metal walls and construction inside of industrial factory in Asturias
    Seedlings growing in laboratory test tubes, conceptual image of plant research and genetic engineering. — Stock Photo
    Seedlings growing in laboratory test tubes, conceptual image of plant research and genetic engineering.
    Cropped view of engineer using stereo microscope for inspecting printed circuit board. — Stock Photo
    Cropped view of engineer using stereo microscope for inspecting printed circuit board.
    Technician carrying equipment and solution in sterile laboratory. — Stock Photo
    Technician carrying equipment and solution in sterile laboratory.
    Using a multi meter to check dead circuits — Stock Photo
    Using a multi meter to check dead circuits
    Female engineer planning, creating flow chart in office — Stock Photo
    Female engineer planning, creating flow chart in office
    Low angle view, crossing wires overhead, telegraph pole, infrastructure — Stock Photo
    Low angle view, crossing wires overhead, telegraph pole, infrastructure
    Woman working in laboratory — Stock Photo
    Woman working in laboratory
    Welder repairing vessel part in workshop — Stock Photo
    Welder repairing vessel part in workshop
    Front view of hardworking Asian male architect sitting at desk and working on laptop in a modern office against blue sky in background — Stock Photo
    Front view of hardworking Asian male architect sitting at desk and working on laptop in a modern office against blue sky in background
    Vintage watch mechanism with gears — Stock Photo
    Vintage watch mechanism with gears
    Worker preparing machine in steel factory — Stock Photo
    Worker preparing machine in steel factory