Ключевые слова: architecture, barrier, blue, box, bridge, building, color, concrete, construction, control, dam, electric, electricity, energy, engineering, environment, environmental, flood, floodgate, flow, forest, fuel, gate, generation, horizontal, hydro, hydroelectric, industrial, industry, lake, nature, outdoor, outside, pouring, power, release, reservoir, resource, river, rural, sky, station, stone, structure, supply, technology, unit, voltage, water,