Ключевые слова: adult, architect, architectural, architecture, background, blue, blueprint, builder, built, business, civil, construction, contractor, control, development, electrician, engineer, engineering, engineers, equipment, foreman, hard, hardhat, hat, health, helmet, home, house, industrial, industry, inspection, inspector, job, male, man, occupation, outdoor, person, plan, professional, project, protective, repair, safety, uniform, vest, work, worker, workplace,