Ключевые слова: alternative, architecture, blue, bridge, concrete, construction, dam, eco, ecology, electric, electricity, energy, engineering, environment, environmental, flow, flowing, generation, generator, green, hydro, hydroelectric, hydropower, industrial, industry, lake, landmark, landscape, natural, nature, outdoor, outdoors, plant, power, production, renewable, reservoir, river, sky, station, structure, supply, technology, tourism, travel, turbine, view, water, waterfall,