Ключевые слова: abstract, alternative, background, blue, business, cell, construction, eco, ecological, ecology, electric, electrical, electricity, energy, environment, environmental, equipment, faucet, fuel, gas, generation, generator, global, green, illustration, industrial, industry, isolated, modern, natural, nobody, panel, pipe, pipeline, pipes, power, renewable, resource, solar, source, steel, sun, sunlight, supply, system, technology, tube, white, wind, yellow,