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Ключевые слова:
alternative, blue, cell, clean, climate, collector, eco, ecological, ecology, electrical, electricity, electronic, energy, environment, environmental, equipment, field, forest, fuel, future, generator, global, grass, green, industrial, industry, innovation, innovative, installation, landscape, light, modern, natural, nature, outdoor, panel, photovoltaic, plant, power, renewable, saving, science, sky, solar, station, sun, sunlight, system, technology, tree,