خطوط الكهرباء ، كهرباء ، خط الجهد العالي ، الجهد العالي ، سلك الطاقة ، كابل هوائي ، سلك هوائي ، الأسلاك ، فائدة القطب ، تيار ، برج تنزيل مجاني
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