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ahmad.alshamsi
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Water energy طاقة المياة
Feb 15, 2016
Social Sciences
ahmad.alshamsi
1512 views
solar power الطاقة الشمسية
Feb 15, 2016
Social Sciences
ahmad.alshamsi
1181 views
Wind Energy طاقة الرياح
Feb 15, 2016
Social Sciences
ahmad.alshamsi
1557 views
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