Ключевые слова: adult, background, control, dusk, energy, evening, fuel, gas, glow, industrial, industry, inspection, job, labor, male, management, manufacturing, monitoring, occupational safety, oil, operation, orange, petrochemical, pipes, plant, production, protective clothing, refinery, safety gear, safety helmet, silhouette, skilled, sky, sunset, technology, twilight, work environment, worker, workwear,