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Resistance test of temperature sensors in the cooling supply section of the ventilation unit.
Close up on hands of a Black male reaching towards a holder attached to a CNC machine with many varieties of milling bits on.
Technician Checking Heating System In The Boiler Room
Technician inspector alignment pump  and electric motor, Repairing work in factory concept
Commercial HVAC units on the rooftop of a building. Air conditioner units connected with steel pipes.
This is a Japanese-made electric car transmission.
Technician is checking air conditioner ,measuring equipment for filling air conditioners.
Female technician repairing product and using screwdriver
hydraulics in engineering and mechanics
Technician Checking Heating System In The Boiler Room With Tablet In Hand
Engine without Top Cover
Male Worker Inspecting Water Valve For Leaks In Basement
Electric transformers
All machines nead maintains. Professional technician troubleshooting and repair the machines in the printing house.
One senior man teaching his grandson how to repair vehicles  and pass down the business
Aero mechanic standing near jet and pointing at engine part, mid shot. Engineer holding clipboard with papers, side view
Mechanical engineer in latex gloves removing bearings from an armature on his workbench in a pump room
Large HVAC installation on a membrane roof.
Electrical engineer inspecting electrical systems in equipment control cabinet using data from tablet
Employee works with a device for blowing argon into a double-glazed window, a man wearing protective gloves and safety glasses
Circular knitting machine in a textile industry
High power gas boiler burners in a cogeneration station
Troubleshooting the engine with an open hood of the aircraft in the aircraft hangar, mechanical repair close up view, checking all systems
Latin American mechanic aligning a car tire while working at a garage
closeup, isolated, no people
Fighter jet and helicopter engines in row, internal structure with hydraulic, fuel pipes and other hardware and equipment, army aviation, military aircraft and aerospace industry
Female mechanic measuring helicopter engine voltage with multimeter, close up. Aviation engineer examining jet, back side view
male caucasian operator operating industrial printing press
Teamwork, men engineers in warehouse factory and talking about a machine. Construction workers, collaboration of maintenance or inspection being done and planning development or communication on site
Free Images: "bestof:Antietam 130823-N-TG831-205.jpg en Gas Turbine Systems Technician Mechanical 2nd Class Daniella Mazzaro assigned to the Ticonderoga-class guided-missile cruiser"
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US_Navy_080113-N-8933S-043_Information_Systems_Technician_2nd_Class_Mark_Heier,_assigned_to_the_amphibious_dock_landing_ship_USS_Fort_McHenry_(LSD_43)_as_part_of_Africa_Partnership_Station_(APS),_plays_soccer_with_local_Gabones.jpg
150920-N-ZZ999-004.jpg
The-US-Navy-Ticonderogaclass-guided-missile-cruiser.jpg
Flickr_-_Official_U.S._Navy_Imagery_-_Sailor_plays_soccer_with_student_in_Senegal.jpg
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330-CFD-DN-SD-07-27220.jpg
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US_Navy_090120-N-6538W-183_The_guided-missile_destroyers_USS_Kidd_(DDG_100),_front,_and_USS_Preble_(DDG_88)_steam_ahead_of_the_guided-missile_cruiser_USS_Antietam_(CG_54)_during_a_sunrise_photographic_exercise.jpg
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Prowler Sunset Celebration 150626-N-DC740-019.jpg
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USS_Vicksburg_CG-69.jpg
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Aviation-Boatswains-Mate-on-USS-John-C-Stennis.jpg
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simulates-a-survivor-of-an-ejection.jpg
US_Navy_080815-N-7367K-001_Seabees_assigned_to_Naval_Mobile_Construction_Battalion_(NMCB)_1_carry_full_ruck_sacks_during_a_three-mile_force_march_before_sunrise_at_Naval_Construction_Battalion_Center,_Gulfport.jpg
US_Navy_070408-N-4124C-007_Ensign_Alex_Sicola,_assigned_to_amphibious_assault_ship_USS_Essex_(LHD_2),_plays_a_hymn_during_a_Sunrise_Easter_Service_on_the_ship^rsquo,s_flight_deck.jpg
US_Navy_040611-N-0402E-004_Chief_of_Naval_Personnel,_Vice_Adm._Gerry_Hoewing,_speaks_with_Sailors_assigned_to_Mobile_Security_Force_Detachment_Two_One_aboard_the_Al_Basrah_Oil_Terminal.jpg
US_Navy_090114-N-9698C-132_The_guided-missile_destroyer_USS_Chung-Hoon_(DDG_93)_heads_into_the_sunrise_to_participate_in_the_MIDPAC_Surface_Combatant_Group_sail.jpg
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USS_Antietam_conducts_a_general_quarters_drill._(9918330854).jpg
US_Navy_111021-N-YM590-013_Gas_Turbine_Systems_Technician_(Mechanical)_3rd_Class_Davin_Cook_drops_off_JP-5_and_F-76_fuel_samples_to_be_tested_in_th.jpg
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USS_Chosin_operations_150115-N-ZZ999-003.jpg
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US_Navy_090220-N-4774B-026_Gas_Turbine_System_Mechanical_Technician_3rd_Class_Alvin_Gomez,_assigned_to_the_guided-missile_cruiser_USS_Lake_Champlain_(CG_57),_pushes_a_child_on_a_tire_swing.jpg
US_Navy_100618-N-3327M-081_Gas_Turbine_Systems_Technician_Fireman_Scott_Silvers,_assigned_to_the_guided-missile_cruiser_USS_Chosin_(CG_65),_dons_firefighting_equipment_with_help_from_French_navy_Petty_Officer_2nd_Class_Manuel_D.jpg
Monitoring the engine plant 090626-N-GY309-001.jpg
US_Navy_101108-N-9985W-054_Gas_Turbine_Systems_Technician_Fireman_Paul_Skifter,_assigned_to_the_guided-missile_cruiser_USS_Lake_Champlain_(CG_57),.jpg
US_Navy_061023-N-5330L-366_Gas_Turbine_System_Technician_(Mechanical)_3rd_Class_Marcos_Aponte_and_Electronics_Technician_2nd_Class_Carl_Demker,_assigned_to_the_guided-missile_cruiser_USS_Anzio_(CG_68),_and_two_Montenegrin_junio.jpg
USS_Cape_St._George_action_120209-N-VY256-134.jpg
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