Worker in hard hat and vest examines soil samples with tools.
Schlüsselwörter
men at work,
construction,
safety,
hard hat,
vest,
dirtied,
dirt,
earth,
sample,
testing,
analysis,
exam,
laboratory,
research,
science,
geology,
engineering,
construction worker,
technician,
professional,
occupation,
job,
career,
equipment,
tool,
sieve,
trowel,
container,
measuring,
experiment,
investigation,
datum,
collection,
material,
ground,
earth science,
construction industry,
civil engineering,
surveying,
field work,
safety-gear,
workwear
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