Ключевые слова: architecture, backdrop, background, brown, concrete, construction, control, dam, design, drain, electricity, energy, environment, environmental, failure, flood, floodgate, flow, flowing, fuel, hydro, hydroelectric, industrial, industry, landscape, material, movement, natural, nature, old, open, outdoors, pattern, power, pump, purification, rain, reservoir, river, rock, station, stone, stream, supply, surface, technology, texture, turbine, voltage, wallpaper, water, waterfall,