Ключевые слова: air, alternative, background, blade, blue, cheap, clean, cutout, earth, ecologic, ecological, electric, electricity, energy, environment, environmentally, friendly, fuel, future, generate, generator, industrial, industry, isolated, metal, mill, nature, pollute, pollution, power, propeller, protected, renewable, rotate, rotating, rotation, source, spin, stand, stroom, turbine, warming, watts, white, wind, windmill, windturbine, wings,