Ключевые слова: adult, architecture, building exterior, built structure, business, businessman, chemical plant, cityscape, commercial dock, construction industry, construction site, construction worker, cooperation, dusk, engineer, engineering, environment, equipment, factory, foreman, fuel and power generation, gas, hardhat, illuminated, industry, looking, machinery, manager, manufacturing, men, night, oil, oil industry, outdoors, people, petrochemical plant, plant, protective workwear, refinery, safety, silhouette, site, standing, steel, teamwork, technology, two, work helmet,