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Electrician engineer tests electrical installations and wires on relay protection system. Adjustment of scheme of automation and
Copper pipes for natural gas installations, attached to a wall in a boiler room lined with ceramic tiles.
Close up of work tools and components for electrical installations, isolated on white background
Electrical engineers test electrical installations and wiring on protective relays, measuring them with a multimeter
Colored accessories and cables used in electrical installations
Wooden wave breaking installations in The North Sea, Zealand, The Netherlands
Electrical engineers test electrical installations
Close up of work tools for electrical installations, isolated on white background
Asian electrician wear safety clothes with electric screwdriver installations and wires on relay protection system
Electrical engineers test electrical installations
Remains of experimental hydraulic installations and flow models
Installations for determination of nitrogen. Thermoreactor
Experimental hydraulic engineering installations in the Waterloopbos
Experimental installations in the Waterloopbos
Experimental installations in the Waterloopbos
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