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    Scientist pipetting sample in microcentrifuge tube for chemical analysis. — Stock Photo
    Scientist pipetting sample in microcentrifuge tube for chemical analysis.
    Crop hands pulling switches on audio mixer board in recording studio. — Stock Photo
    Crop hands pulling switches on audio mixer board in recording studio.
    Cropped image of Carpenter tightening screw to hinges on wooden door at home — Stock Photo
    Cropped image of Carpenter tightening screw to hinges on wooden door at home
    Laboratory technician analyzing chemical solution in blood bank — Stock Photo
    Laboratory technician analyzing chemical solution in blood bank
    From above crop male student hands holding denture and paste while sitting at table during dentistry class — Stock Photo
    From above crop male student hands holding denture and paste while sitting at table during dentistry class
    Attentive male scientist experimenting in laboratory — Stock Photo
    Attentive male scientist experimenting in laboratory
    Laboratory technician scanning bar code of plasma bags in blood bank — Stock Photo
    Laboratory technician scanning bar code of plasma bags in blood bank
    Microbiologist taking bacterial sample on microscope slide. — Stock Photo
    Microbiologist taking bacterial sample on microscope slide.
    Man repairing mobile phone in repair centre — Stock Photo
    Man repairing mobile phone in repair centre
    Female power engineer with canvas buckets at a power plant — Stock Photo
    Female power engineer with canvas buckets at a power plant
    Female scientist writing on clipboard in greenhouse — Stock Photo
    Female scientist writing on clipboard in greenhouse
    Laboratory technician analyzing blood bag in blood bank — Stock Photo
    Laboratory technician analyzing blood bag in blood bank
    Airplane pilot and mechanic discussing paperwork at cockpit — Stock Photo
    Airplane pilot and mechanic discussing paperwork at cockpit
    Male scientist placing chemical bottle on a machine in laboratory — Stock Photo
    Male scientist placing chemical bottle on a machine in laboratory
    Group of male technicians in uniform working with alternative solar panels and preparing for installation near residential building — Stock Photo
    Group of male technicians in uniform working with alternative solar panels and preparing for installation near residential building
    Server room technician with cable at panel — Stock Photo
    Server room technician with cable at panel
    Group of male technicians in uniform working with alternative solar panels and preparing for installation near residential building — Stock Photo
    Group of male technicians in uniform working with alternative solar panels and preparing for installation near residential building
    African american male computer technician wearing headphones using laptop working in server room. digital information storage and communication network technology. — Stock Photo
    African american male computer technician wearing headphones using laptop working in server room. digital information storage and communication network technology.
    Close-up of technician operating machine at factory — Stock Photo
    Close-up of technician operating machine at factory
    Close-up of scientist hand pouring reagent into bottle for chemistry research. — Stock Photo
    Close-up of scientist hand pouring reagent into bottle for chemistry research.
    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
    Engineer woman with a device checking and controlling — Stock Photo
    Engineer woman with a device checking and controlling
    Confident Chinese engineer working with laptop at industrial factory — Stock Photo
    Confident Chinese engineer working with laptop at industrial factory
    Unrecognizable prosthetic engineer reviewing the prosthesis of a patient and improving the material in his workshop — Stock Photo
    Unrecognizable prosthetic engineer reviewing the prosthesis of a patient and improving the material in his workshop
    Scientist pipetting sample into tube for analytical testing in laboratory. — Stock Photo
    Scientist pipetting sample into tube for analytical testing in laboratory.
    Closeup of dental cast in modern laboratory — Stock Photo
    Closeup of dental cast in modern laboratory
    Portrait of an engineer on a construction site, Thailand — Stock Photo
    Portrait of an engineer on a construction site, Thailand
    Tooth enamel palette — Stock Photo
    Tooth enamel palette
    Crop unrecognizable student holding denture and a pencil while sitting at table during dentistry class — Stock Photo
    Crop unrecognizable student holding denture and a pencil while sitting at table during dentistry class
    Mechanics with clipboards talking under car in auto repair shop — Stock Photo
    Mechanics with clipboards talking under car in auto repair shop
    Closeup of african american female computer technician using laptop working in server room. digital information storage and communication network technology. — Stock Photo
    Closeup of african american female computer technician using laptop working in server room. digital information storage and communication network technology.
    Male hands holding denture — Stock Photo
    Male hands holding denture
    Senior male master in workwear fixing handlebar of broken retro motorbike in professional workshop — Stock Photo
    Senior male master in workwear fixing handlebar of broken retro motorbike in professional workshop
    African american female computer technician wearing headphones using tablet working in server room. digital information storage and communication network technology. — Stock Photo
    African american female computer technician wearing headphones using tablet working in server room. digital information storage and communication network technology.
    Laboratory technician checking weight of blood bags in blood bank — Stock Photo
    Laboratory technician checking weight of blood bags in blood bank
    Pest control technician using portable spray rig — Stock Photo
    Pest control technician using portable spray rig
    Close-up of repairing tools kept on old piano keyboard — Stock Photo
    Close-up of repairing tools kept on old piano keyboard
    Power plant engineers one with spinal cord injury reviewing utility truck maintenance — Stock Photo
    Power plant engineers one with spinal cord injury reviewing utility truck maintenance
    Female technician in yellow helmet working in factory — Stock Photo
    Female technician in yellow helmet working in factory
    Rear view of male scientist experimenting in laboratory — Stock Photo
    Rear view of male scientist experimenting in laboratory
    Serious adult man in apron and gloves repairing wheel of bike in modern garage — Stock Photo
    Serious adult man in apron and gloves repairing wheel of bike in modern garage
    Painter posing in front of the booth before painting a car — Stock Photo
    Painter posing in front of the booth before painting a car
    Focused steelworker with flashlight examining steel part in steel mill — Stock Photo
    Focused steelworker with flashlight examining steel part in steel mill
    Pest control technician with portable spray rig using spray nozzle and hose — Stock Photo
    Pest control technician with portable spray rig using spray nozzle and hose
    Server room technician with flashlight in dark corridor — Stock Photo
    Server room technician with flashlight in dark corridor
    Carpenter measuring door frame outside house — Stock Photo
    Carpenter measuring door frame outside house
    Laboratory technician analyzing blood bag in blood bank — Stock Photo
    Laboratory technician analyzing blood bag in blood bank
    Female power engineer sorting through scaffolding at power plant — Stock Photo
    Female power engineer sorting through scaffolding at power plant
    Laboratory technician checking invoices in blood bank — Stock Photo
    Laboratory technician checking invoices in blood bank
    Laboratory technician holding plasma bags in blood bank — Stock Photo
    Laboratory technician holding plasma bags in blood bank
    Laboratory technician using refrigerated centrifuge machine in blood bank — Stock Photo
    Laboratory technician using refrigerated centrifuge machine in blood bank
    From above crop female student holding denture while sitting at table during dentistry class — Stock Photo
    From above crop female student holding denture while sitting at table during dentistry class
    Mid section of technician cutting metal in metal industry — Stock Photo
    Mid section of technician cutting metal in metal industry
    African american male computer technician using laptop working in business server room. digital information storage and communication network technology. — Stock Photo
    African american male computer technician using laptop working in business server room. digital information storage and communication network technology.
    High angle crop anonymous dentist in gloves using dental ultraviolet curing light tool during procedure with patient in clinic — Stock Photo
    High angle crop anonymous dentist in gloves using dental ultraviolet curing light tool during procedure with patient in clinic
    Worker lifting piece in steel factory — Stock Photo
    Worker lifting piece in steel factory
    Female power engineer adjusting water valves at power plant — Stock Photo
    Female power engineer adjusting water valves at power plant
    Optometrist adjusting the optometry equipment during study of the eyesight of a black woman — Stock Photo
    Optometrist adjusting the optometry equipment during study of the eyesight of a black woman
    African american male computer technician wearing headphones using laptop working in server room. digital information storage and communication network technology. — Stock Photo
    African american male computer technician wearing headphones using laptop working in server room. digital information storage and communication network technology.
    Female laboratory technician using microscope in laboratory. — Stock Photo
    Female laboratory technician using microscope in laboratory.