Ключевые слова: architect, building, business, caucasian, computer, construction, development, energy, engineer, engineering, face, facility, factory, gas, hard hat, hardhat, heavy, helmet, industrial, industry, internet, job, machine, machinery, male, man, manufacture, manufacturing, metalwork, occupation, oil, person, pipe, pipeline, plant, portrait, power, production, profession, professional, protection, safety, smiling, steel, successful, technology, uniform, work, worker, workman,