Engineers surveying tracks at construction site
Keywords
engineer,
surveying,
track,
construction,
site,
adult,
blue-collar,
check,
closeup,
day,
equipment,
expertise,
indoor,
industry,
instrument,
man,
manual,
measure,
measurement,
mid,
occupation,
outdoors,
pair,
people,
selective focus,
skill,
stick,
train,
2,
walkie-talkie,
work,
men at work