Ключевые слова: air, architecture, building, cable, chemical, chimney, city, climate, dirty, ecology, electric, electrical, electricity, emergency, energy, engineering, environment, environmental, equipment, factory, fire, firefighters, firemen, forest, generator, global, heavy, high, hydrant, industrial, industry, johnny, line, machine, manufacturing, metal, nature, office, oil, outdoors, park, petrochemical, pipe, plant, plug, plumping, pollution, power, prevention, produce, production, protection, pump, red, safety, smoke, spring, stack, station, steam, steel, structure, supply, tank, technology, tower, water, woods, workplace,