Ключевые слова: architecture, art, background, chemical, clock, concrete, design, development, dirty, electricity, energy, engineering, equipment, facility, factory, fantasy, fuel, gas, gear, heat, heavy, illustration, industrial, industry, inside, iron, machine, manufacturing, material, mechanism, metal, oil, old, pipe, pipeline, plant, power, resource, steam, steampunk, steel, technology, transportation, tube, wallpaper, water, wreck,