Ключевые слова: aspen tree, birch tree, closeup, construction, cut, ecology, engineering, equipment, heavy, hoard, iron, labor, liquidation, master, material, mechanical, metro, missed sleeper, poisoned, rail, railroad, railway, reconstruction, recyclable, repair, reserve, reusable, rust, scrap, scratch, screw, sleeper, solid, speed, station, steel, strength, support, technology, track, traffic, train, tramway, transit, transport, transportation, travel, vehicle, way, wooden tie,