Ключевые слова: background, bars, bearer, bolster, breast, cargo, concrete, construction, day, endless, gravel, great, grooved, hard, heavy, industry, infrastructure, managed, manufacture, material, new, pattern, pile, production, rail, railroad, railway, reconstruction, repair, roadbed, rusty, sleeper, stack, station, steel, stock, stockpile, stones, strength, track, train, tram, tramway, transit, transportation, unused,