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Professional underground workerpointing downward in a tunnel/mine.
Construction site of tunnel through mountains of expressway project in Turkey 2023
Back two construction engineers discussing help create a plan with a blueprint home building at the construction site, Rectangular concrete infrastructure of drain system.
platform runners
An underground tunnel, rails and wagons for the city's wastewater
Construction Machinery Working in Tunnel Construction
Chalky mine tunnel with traces of drilling machine, Belgorod, Russia.
Miners working at Simmer & Jack gold mine in Germiston, South Africa. Vintage photo etching circa 19th century.
Potosi, Bolivia - September 7, 2009: Miners in the Silver mine look down a basic mineshaft during a tour of the silver mine which has been in operation since the town was founded in 1546.
Scenery of uninhabited island \
Civil engineer with orange reflective safety jacket working in a huge tube at construction site line
driving through the tunnel
Constructors in a tunnel
construction site, industrial, concrete, stone structure. equipment for the production.
First World War bunker on the Italian-Swiss border
A highway under construction, including a false tunnel, as seen from above
Mining works
go through the tunnel
The exit of a tunnel road in the mountains.
Mine/tunnel entrance at night
The old Tokaido road Leading Through Hakone town in Kanagawa prefecture, Japan.
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white light at the end of the mountain tunnel
Constructor engineer using tablet at a road construction site
Mechanical engineer with green safety uniform holds construction drawing work in tunnel at construction sideline
sewer construction in hydraulic engineering for water and wastewater supply
tunnel construction and ventilation pipe
Construction site tunnel entrance construction, stone construction. equipment for production.
Railway tunnel under construction. Black and white
Canada British Columbia, Fraser canyon highway.
Free Images: "bestof:Construction work on tunnel portal - NARA - 286027.tif Scope and content General notes 286027 Local identifier Department of the Interior National Park Service"
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