Worker uses trencher to dig seam for underground utilities at construction site.
Schlüsselwörter
trencher,
construction,
utility,
installation,
men at work,
digging,
trench,
equipment,
dirt,
ground,
machinery,
tool,
narrow,
seam,
dirtied,
excavation,
manual,
work,
landscape,
project,
preparation,
technology,
gravel,
terrain,
industrial,
operation,
infrastructure,
heavy,
building,
construction site,
civil engineering,
heavy machinery,
construction equipment,
groundwork,
urban development
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