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http://egydesigner.com/blog/2019/01/08/%d9%83%d9%8a%d9%81-%d8%aa%d8%b9%d9%85%d9%84-%d8%aa%d9%82%d9%86%d9%8a%d8%a9-5g%d8%9f/
كيف تعمل تقنية 5G؟