Construction workers in safety gear working inside a lit tunnel.
Palabras clave
tunnel,
infrastructure,
safety,
transportation,
navigation,
labor,
progress,
practice,
plan,
project,
risk,
teamwork,
process,
challenge,
helmet,
heavy,
workshop,
engineering,
indoor,
effect,
large,
structure,
men at work,
control,
daylight,
standard,
civil,
method,
manpower,
health,
industry,
light,
craftsman,
modern,
urban,
orange,
reflector,
blue,
design,
pattern,
creative,
equipment,
construction
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