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تكاليف الوقود والضريبة لعام 2016

البريد الإلكترونى طباعة

 
PV Cell Prototype Generates Electricity from IR and UV Light
Solar energy is present in abundance around us. The problem is how to harness a substantial portion of it for human use. How to raise the efficiency bar of solar conversion into electricity? Scientists are continuously engaged in finding a way out for this
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