Ключевые слова: boiler, building, burner, business, central, chemical, chemistry, chimney, construction, cooling, corporation, diesel, electricity, employment, energy, engineering, environment, factory, finances, fog, fuel, furnace, generator, heat, industry, machinery, manufacturing, metal, occupation, oil, organization, pipe, pipeline, pollute, pollution, power, pump, refinery, rust, smoke, stack, steel, supply, technology, towers, tube, vapor, working,