ذرة الثوريوم ، قذيفة الإلكترون ، الطاقة النووية ، نواة ، دالة التوزيع الاحتمالي ، سحابة الإلكترون ، العاشر ، الطاقة ، كيمياء ، علم ، 3D
الصور ذات الصلة الخالية من حقوق الملكية
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