Ключевые слова: caucasian, construction, contractor, control, electric, employee, engineer, equipment, facility, factory, foreman, industrial, industry, infrastructure, inspection, inspector, job, leadership, machine, maintenance, male, man, management, manager, manufacturing, mechanic, occupation, panel, people, professional, railroad, railway, safety, service, staff, station, subway, team, teamwork, technician, technology, train, transport, transportation, uniform, vehicle, woman, worker, workshop,