سد ، ماء ، في الخارج ، الصخور ، بنى ، أزرق ، سماء ، توليد الوقود والطاقة ، كهرباء ، مولد كهرباء ، طاقة هيدروالكترونية
الصور ذات الصلة الخالية من حقوق الملكية
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