Ключевые слова: bolt, build, comfort, concrete, construction, engineering, equipment, industrial, industry, installation, integration, iron, lay, laying, machine, man, men at work, metal, people, platform, railroad, rails, railway, reconstruction, repair, road, roller, shoveling, sleeper, slope, stacking, station, steel, steelwork, track, tracks, train, tram, transport, transportation, uniform, way, welding, work, worker,