Ключевые слова: authority, backgrounds, blue, built structure, business, cable, cloud sky, color image, communication, communications tower, concepts, construction frame, construction industry, danger, dusk, economy, electrical grid, electricity, electricity pylon, engine, engineering, environment, equipment, finance, finance and economy, fuel and power generation, generator, grid pattern, horizontal, in a row, industry, insulation, metal, no people, plant, pole, power line, power station, power supply, sending, sky, station, steel, sunset, symbol, technology, tower, usa, wire,