برج الجهد العالي ، كابل عالي الجهد ، كهرباء ، قوة ، الأسلاك ، أزرق ، توليد الوقود والطاقة ، صلب ، خط الكهرباء ، الصرح الكهربائي ، صناعة تنزيل مجاني
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