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Resistance test of temperature sensors in the cooling supply section of the ventilation unit.

female heating maintenance engineer

Aircraft Technician inspecting and working in the main electronics bay of a 757 commercial airplane.

Professional male mechanic working in a tool shop

Engineers working in the main control room of a state-of-the-art chiller HVAC system.

Engineer train Inspect the train's diesel engine, railway track in depot of train

Electric technician working on a fuse box or switch board, using pliers or engineering tool. Male electrician doing complex installation and connection of electrical equipment and wiring cables.

Full length view of busy foreman standing near white air conditioner with toolbox on it. Skilled african american male using digital multimeter for testing power in factory equipment.

airconditioning engineers servicing

Young Man Controlling Heating Plant

Resistance test of temperature sensors in the cooling supply section of the ventilation unit.

A mature man with a thick beard and large build working as a concrete boom pump operator, walking next to a truck, looking at the camera with a serious expression. This is part of a series showing workers operating concrete pump trucks at a construction site.

Operators do maintenance work on the turbine of a wind turbine

Side view of a furniture factory worker programming a CNC machine with a computer. male carpenter working on computer at wood factory.

Offshore oil rig worker prepare tool and equipment for perforation oil and gas well at wellhead platform. Making up a drill pipe connection. A view for drill pipe connection from between the stands

Construction Worker Cutting Steel Process With Sparks Fly From Gas Cutting Machine

Male worker inspection visual pipeline oil and gas

Delivery worker wearing reflective vest working night shift

TECHNICIAN SERVICE REPAIRING HEATING BOILER. HOME INSURANCE CONCEPT.

An Oilfield Worker in His Thirties Pumps Down Lines and Hits a Pipe with a Hammer at an Oil and Gas Drilling Pad Site on a Cold, Sunny, Winter Morning

Rope access window cleaner. Skyscraper Washing.

Young Indigenous Navajo Firefighter in the Fire Station in full fire protective gear, turnout, Getting In To Fire Engine in Monument Valley Utah

Safety engineers inspect the piping system and operation of fire hydrants in the factory. Safety Technician inspects fire hydrant system under building construction

Male plumber maintenance water pipes in water pumping station. Male plumber engineer working and repairing pipes at work, wearing safety uniform, helmet and gloves

Marine engineer inspecting ship's engine in engine control room ECR. Seamen's work.

A mature man in his 40s inspecting a pipe clamp on a concrete boom pump truck. He is looking at the camera with a serious expression. This is part of a series showing workers operating concrete pump trucks at a construction site.

service engineer worker at industrial compressor refrigeration station repairing and adjusting equipment at manufacturing factory

heating engineer installing system

Free Images: "bestof:Machinery Repairman 3rd class Andrew Kite from Portland, Ore., searches for hot spots during a fire drill with Navy Region Northwest Fire and Emergency Services"

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