فتح السد ، جدار السد ، فائض ، تتالي ، ماء ، توليد الوقود والطاقة ، تدفق ، كهرباء ، مولد كهرباء ، تقنية ، صناعة
الصور ذات الصلة الخالية من حقوق الملكية
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