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炭:概述其特性和用途
monicafwey512233
13 hours ago
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يُعرَّف 炭 بأنه مادة عضوية ناتجة عن احتراق المواد العضوية في غياب الهواء. يُستخدم الفحم الطبيعي على مدى السنوات لعدة
https://jimoczn950898.getblogs.net/69080485/فحم-طبيعي-لمحة-عن-خصائصه-و-استخداماته
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