Retrato de un Modelo de una cuidad de energía solar.
http://freeimagescollection.com/concepts/model-of-a-high-tech-city-using-solar-energy-for-its-power-needs.php
http://freeimagescollection.com/images/concepts/model-of-a-high-tech-city-using-solar-energy-for-its-power-needs-f5.jpg
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