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Sewer pump is immersed in wastewater through concrete ring of well, bottom view of man standing on edge of septic tank.
Portrait of a mid adult Black blue collar worker operating an industrial CNC machine in a factory. Checking a final product made in CNC machine.
Roughneck, engineer or male technician working outdoors on a north sea oil drilling rig. Wearing safety equipment, coveralls, hard hat and gloves. Work, employment, occupation and oil industry are common themes.
male engineer workers maintenance automatic robotic arm machine in a factory. worker checking and repairing automatic robot hand machine. technician worker check for repair factory machine.
Portrait of a power plant operator wearing coveralls, had hat, high vis vest, and safety glasses working on a turbine at night.
A young engineer inspecting the blades of an industrial windtunnel wearing a hard top, earplugs and protective goggles
Mechanical engineer wearing orange safety suits and safety harnesses work inside the tunnel or  huge sewage drain pipe
Male engineer working with robot controller for maintenance or repair in industry factory. Engineer worker maintenance automatic robotic arm machine system welding in the factory
Project  Engineer train Inspect the train's diesel engine, railway track in depot of train
Team engineer or technician have experience and expertise, uses control panel to control the operation of the robot arm system welding work piece and control quality in operate process work at heavy industry. Smart industry robot arms for production technology in factory.
Please see some similar pictures from my portfolio:
male engineer workers maintenance automatic robotic arm machine in a factory. worker checking and repairing automatic robot hand machine. technician worker check for repair factory machine.
An auto repairman prepares a car for a smog test by hooking it up to an emissions analyzer machine and having it on rollers.  This is a required procedure every two years for all vehicles in California.Click below for a lightbox of all my Auto Repair Shop images:
Industry engineer wearing safety uniform control operating lathe grinding machine working with detail tablet computer on hand in industry factory is metal manufacture industry concept.
Male workers building pile foundation for wooden frame house. Men builders in white safety helmets drilling piles into the ground..
Back view of Construction engineer or technician with reflective coverall suit and safety harness use a flashlight to guide for work inside a tunnel.
African American male engineer worker maintenance heavy machine in the factory. Black male worker working with heavy machine with safety uniform, goggles and helmet
A mature man inspecting a pipe clamp on a concrete boom pump truck, taking a photo with his mobile phone. He is a heavyset man in his 30s with a thick beard. This is part of a series showing workers operating concrete pump trucks at a construction site.
A team of electrical engineers inspecting solar panels in a hundred acre field, in the evening after completing the daily work tasks with the setting sun.
Field Technicians and Supervisor for the county testing water at a residential development.
Automation engineer or robotics technician checking, servicing robotic arm. Concept of modern technology in industries, automated processes and robotics.
Stationary engeneer at work
engineer checking auto parts in factory
Construction manager marking trees for be cut.  He carries a digital tablet and wears a safety vest and hard hat.  For sale sign is on the premises.
Mechanical Engineer wearing orange safety jacket and white hardhat with laptop  and blueprint working on horizontal water tanks at construction site
Warehouse worker Using  steel cutting Seal for open A Door Container. Safety Protect Cargo Transport. Shipping Cargo Container Truck.
Busy female factory technician in hardhat focusing on work while examining tube at factory, view through object
Young engineer checking and analyzing robotic arm
Construction Worker In A Construction Zone
Close up of male system administrator setting up network equipment using tablet computer. Mature technician works in server room. Local area network and web servers maintenance. Data storage center.
Free Images: "bestof:Senior Chief Sonar Technician (Surface) Steve Aderhold, from Harrah, Oklahoma, simulates the proper loading of an M-500 shotgun during barrel clearing training"
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US_Navy_070907-N-8704K-134_Senior_Chief_Sonar_Technician_Surface_Scott_Pageau_gives_a_woman_a_pair_of_sandals_donated_by_Project_Handclasp_at_Centre_de_Sante,_a_health-training_center_in_Croix-des-Bouquet,_Haiti.jpg
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US_Navy_110223-N-1755G-090_Vice_Chief_of_Naval_Operations_Adm._Jonathan_Greenert_listens_as_Senior_Chief_Sonar_Technician_(Surface)_Charles_Benoit.jpg
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US_Navy_090302-N-3218H-003_U.S._Marine_Corps_Capt._Joshua_Bullard_instructs_Fire_Controlman_1st_Class_William_Chadwell_and_Sonar_Technician_(Surface)_3rd_Class_Robert_Sims_the_proper_technique_for_a_hand-to-hand_self-defense_ta.jpg
US_Navy_110629-N-YX920-045_Lt._Dan_Bailey,_right,_and_Senior_Chief_Explosive_Ordnance_Disposal_Technician_Paul_Gardin_iscuss_proper_techniques_for.jpg
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US_Navy_050326-N-3614M-148_Sonar_Technician_1st_Class_Christopher_Fromknecht_fires_a_Mossberg_12-gauge_shotgun_from_the_forecastle_of_the_guided_missile_frigate_USS_Gary_(FFG_51).jpg
US_Navy_110512-N-QP955-030_Rear_Adm._Joseph_Kilkenny,_left,_and_Vice_Adm._Mark_E._Ferguson,_III_applaud_NETC's_Military_Instructors_of_the_Year.jpg
US_Navy_111117-N-YZ751-013_Senior_Chief_Sonar_Technician_(Surface)_Andre_A._Delarosa,_right,_and_Command_Master_Chief_Paulette_Brock_conduct_a_dres.jpg
US_Navy_060320-N-4965F-004_Senior_Chief_Sonar_Technician_Dale_Wagner,_left,_Senior_Chief_Storekeeper_Paul_Marcou_assigned_to_Afloat_Training_Group,_Middle_Pacific,_clean_up_trash_and_debris_from_the_shorelines_of_historic_Ford.jpg
US_Navy_060510-N-5091C-019_Senior_Chief_Sonar_Technician_Michael_Davis_observes_underway_replenishment_training_aboard_Armada_Republica_Colombia_(ARC)_ship_Buenaventura_(BM_162).jpg
US_Navy_060510-N-5091C-030_Senior_Chief_Sonar_Technician_Michael_Davis_observes_underway_replenishment_training_aboard_Armada_Republica_Colombia_(ARC)_ship_Buenaventura_(BM_162).jpg
US_Navy_110408-N-8467N-006_Senior_Chief_Sonar_Technician_(Submarine)_Matthew_Lindsey_hugs_his_wife_and_daughter_after_returning_from_deployment.jpg
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US_Navy_050629-N-9866B-093_Craftmaster,_Senior_Chief_Sonar_Technician_Kevin_Chambers_and_Engineer_Gas_Turbine_System_Technician_2nd_Class_Don_Kennlly_avigate_their_Landing_Craft,_Air_Cushion_(LCAC).jpg
US_Navy_090420-N-9928E-195_Chief_Sonar_Technician_(Surface)_Gary_Hillman,_from_El_Dorado,_Ill.,_generates_an_under-sea_warfare_training_scenario_in_the_sonar_control_room_aboard_the_Arleigh_Burke-class_guided-missile_destroyer.jpg
US_Navy_110408-N-AW342-109_Senior_Chief_Sonar_Technician_Matthew_Lindsey,_assigned_to_the_Los_Angeles-class_attack_submarine_USS_Providence_(SSN_7.jpg
US_Navy_081023-N-7441H-002_Navy_veteran_and_diver_Jack_Monro_presents_Chief_Sonar_Technician_Stephen_Aderhold_a_spike_from_the_first_USS_New_Hampshire,_a_74-gun_ship_of_the_line_laid_down_in_1819_and_launched_in_1864_from_Ports.jpg
US_Navy_090327-N-5242D-053_Chief_Sonar_Technician_(Surface)_Manny_Ybarra_briefs_Ugandan_officials_and_media_on_the_sonar_search_by_Explosive_Ordnance_Disposal_Mobile_Unit_(EODMU)_8_during_the_recovery_of_a_Soviet-era_Ilyushin_7.jpg
US_Navy_100817-N-6632S-038_Chief_(Sel.)_Sonar_Technician_(Surface)_Alexandra_Smith_digs_a_trench_at_Red_Wing_Park_during_the_ship's_second.jpg
US_Navy_090626-N-5328N-475_Master_Chief_Sonar_Technician_Lou_Wills,_Center_for_Information_Dominance_(CID)_Corry_Station_senior_enlisted_leader,_keeps_a_close_eye_on_a_Sailor_who_is_manning_the_rails_during_the_CID_Corry_Statio.jpg
US_Navy_061108-N-6999H-033_Senior_Chief_Explosive_Ordnance_Technician_Michael_G._Manning,_an_instructor_at_the_new_naval_firing_range_attached_to_Explosive_Ordnance_Disposal_Training_and_Evaluation_Unit_One_(EODTEU-1),_simulate.jpg
US_Navy_090617-N-3570S-070_Sonar_Technician_(Surface)_1st_Class_Steven_Duncan_stands_watch_in_the_Combat_Information_Center_during_the_Fleet_Synthetic_Training-Joint_Exercise_(FST-J).jpg
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US_Navy_090420-N-9928E-211_Sonar_Technician_(Surface)_Seaman_Apprentice_Joseph_Barnes,_from_Richland,_Wash.,_reports_simulated_mines_during_an_under-sea_warfare_training_scenario_in_the_sonar_room_aboard_the_Arleigh_Burke-class.jpg
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US_Navy_080804-N-4995K-123_Sonar_Technician_(Surface)_1st_Class_Eric_Hall_demonstrates_how_to_properly_perform_a_take_down.jpg
US_Navy_090923-N-8750E-097_Secretary_of_the_Navy_(SECNAV)_the_Honorable_Ray_Mabus,_looks_into_the_lock-out_chamber_of_the_Virginia-class_attack_submarine_USS_New_Hampshire_(SSN_778).jpg
US_Navy_100413-N-7367K-004_Senior_Chief_Hull_Maintenance_Technician_Don_Mapes_hugs_his_son_during_the_battalion's_homecoming_at_the_training_hall_at_Naval_Construction_Battalion_Center,_Gulfport.jpg
US_Navy_110203-N-7488A-118_Senior_Chief_Electronics_Technician_Stephon_Craddock_conducts_maintenance_training_with_Logistics_Specialist_Seaman_Ryan.jpg
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US_Navy_070630-N-8110K-014_Senior_Chief_Explosive_Ordnance_Disposal_Technician_David_Prasek_demonstrates_the_proper_way_to_wear_a_Med-Eng_EOD_8_Bomb_Suit_to_a_participant_of_the_Navy_SEAL_Trident_Challenge_at_Boston_University.jpg
US_Navy_070908-N-0640K-150_Senior_Chief_Aviation_Electronic_Technician_Mike_Connolly,_assigned_to_the_Center_for_Naval_Aviation_Technical_Training_Unit,_serves_as_a_swim_meet_referee.jpg
US_Navy_090716-N-3581D-118_Senior_Chief_Information_Systems_Technician_Kevin_McClure,_assigned_to_Explosive_Ordnance_Disposal_(EOD)_Unit_1,_checks_the_line_attached_to_a_mock_improvised_explosive_device_during_a_training_exerci.jpg
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US_Navy_070105-N-0553S-003_Senior_Chief_Hull_Technician_Mark_A._Williams,_president_of_the_Shipyard_Chief_Petty_Officer_Association_(CPOA)_presents_a_check_to_Cyndi_Sheehan,_development_director_for_Make-A-Wish_Foundation_of_Ha.jpg
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US_Navy_090428-N-6538W-178_Chief_Machinist's_Mate_James_Trogden_and_Senior_Chief_Cryptological_Technician_Technical_Alex_Peloquin_pick_up_leaves_and_debris.jpg
US_Navy_100610-N-4482V-003_Senior_Chief_Engineman_Henry_Hewitt_surprises_his_wife_Tammy,_during_a_Naval_Education_and_Training_Command_(NETC)_all-hands_meeting.jpg
US_Navy_100610-N-4482V-001_Senior_Chief_Engineman_Henry_Hewitt_surprises_his_wife_Tammy,_during_a_Naval_Education_and_Training_Command_(NETC)_all-hands_meeting.jpg
US_Navy_101112-N-8546L-418_Senior_Chief_Explosive_Ordnance_Disposal_(EOD)_Technician_Jonathan_C._Bates,_left,_a_master_EOD_technician_from_Kennewic.jpg
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US_Navy_110408-N-QP955-009_Senior_Chief_Aviation_Machinist's_Mate_Jonathan_Redfield,_assigned_to_Officer_Training_Command^sbquo,_grades_cadets_from.jpg
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