الطاقة ، تيار ، محطة توليد الكهرباء ، الخلايا الشمسية ، طاقة شمسية ، الطاقة الشمسية الضوئية ، كهرباء ، تقنية ، المروحة ، Windräder ، طاقة الرياح
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