معتصم إبراهيم خليل تجدد الحديث هذه الأيام عن الاستثمار في معدن السيليكون الذي يوجد بكثرة في الرمال البيضاء حول مدينة…
أكمل القراءة »بروفيسور / معتصم إبراهيم خليل مقدمو ومضات: البروفسور/ معتصم إبراهيم خليل، عالم كيمياء وباحث ذو باع طويل، وهو مهتم بالاستفادة…
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