Ключевые слова: adult, business, computer, connection, construction, control, discussion, employee, energy, engineer, engineering, equipment, facility, factory, foreman, hard hat, hardhat, helmet, industrial, industry, inspector, liquid, maintenance, male, man, manufacturing, metal, metalwork, natural, occupation, people, pipe, plant, plumbing, production, professional, safety, service, system, team, technician, technology, uniform, valve, woman, work, worker, workman, workshop,