Ключевые слова: boiler, business, chemical, chimney, coal, combined, compression, construction, cycle, dusk, electric, electrical, electricity, emission, energy, engineering, facility, factory, fuel, gas, generating, generation, generator, grid, heat, industrial, industry, infrastructure, light, line, manufacturing, oil, pipe, pipelines, plant, pollution, power, processing, production, refinery, smoke, station, steel, structure, system, technology, turbine, valves, voltage,