Ключевые слова: architect, architecture, builder, business, cement, check, checking, concrete, construction, contractor, control, design, development, drawing, engineer, engineering, environment, equipment, helmet, industrial, industry, infrastructure, inspecting, inspection, laptop computer, maintenance, man, passenger, person, professional, project, public, railroad, railway, road, safety, site, structure, team, technology, track, train, transport, transportation, uniform, urban, way, wearing, work, worker,