Ключевые слова: architecture, area, background, build, builder, business, caucasian, civil, concrete, construction, crane, development, digger, engineer, engineering, equipment, excavation, excavator, hard, hardhat, helmet, industrial, industry, job, machine, machinery, male, man, manual, occupation, panorama, panoramic, pavement, people, person, power, professional, project, protection, road, safety, scaffolding, site, steel, structure, technology, work, worker, workers, yellow,