Ключевые слова: business, chemical, computer, control, development, device, energy, engineer, engineering, equipment, factory, fuel, gas, gasoline, helmet, industrial, industry, instruments, laptop, maintenance, male, man, manufacturing, mechanical, notebook, occupation, oil, partner, people, person, pipe, plant, power, production, professional, protection, refinery, repair, safety, site, steel, technology, worker, workman, workplace,