سد ، بناء ، هندسة معمارية ، مصدر ، خزان ، ماء ، توليد الوقود والطاقة ، كهرباء ، مولد كهرباء ، طاقة هيدروالكترونية ، مزود الطاقة
الصور ذات الصلة الخالية من حقوق الملكية
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