Ключевые слова: 5055 years, adult, builder, building, caucasian, computer, construction, desktop, device, display, engineer, engineering, equipment, factory, gadget, helmet, indoors, industrial, industry, keyboard, machinery, male, man, manufacture, manufacturing, matured, modern, occupation, operate, operator, people, person, plant, production, profession, professional, screen, specialist, technician, technology, vest, work, worker, workman,