Ключевые слова: black, chemical, chemicals, cylinder, cylindrical, danger, dangerous, derail, derailed, dry, efficiency, efficient, efficiently, freight, guage, guages, haul, hauling, hauls, industrial, industry, liquid, liquids, machine, metal, oil, pressure, quantity, rail, railcar, railcars, railroad, safe, safety, shadows, solvents, spill, steel, sun, sunny, tank, tank car, tankcar, tanker, ties, ton, tons, toxic, track, tracks, train, trains, transport, transportation, transports, tree, trees, valve, valves, white,