Ключевые слова: ballast, burn, car, casting, construction, de stress, engineering, exothermic, fire, flame, heat, hot, industrial, industry, iron, liquid, machine, maintenance, melting, metal, orange, oxidation, oxide, pot, rail, railroad, railway, reaction, red, repair, road, site, sleeper, smoke, steel, technology, thermit, thermite, torch, travel, vehicle, way, weld, welded, welder, welding, work,