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炭:概述其特性和用途
liviabmdq059297
5 hours ago
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يُعرَّف 炭 بأنه مادة خشبية ناتجة عن احتراق المواد العضوية في غياب الهواء. يُستخدم الفحم الطبيعي على مدى السنوات لعدة
https://philipvobj795512.blogocial.com/فحم-طبيعي-لمحة-عن-خصائصه-و-استخداماته-72369017
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