Ключевые слова: architect, architecture, asian, background, blueprint, business, concept, construction, contractor, electrician, engineer, engineering, equipment, factory, female, foreman, girl, happy, hard, hard hat, hardhat, hat, helmet, industrial, industry, job, manager, mechanic, men at work, occupation, panel, person, power, production, professional, project, protective, safety, site, technician, technology, woman, work, worker, yellow,