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炭:概述其特性和用途
rsahwvn593781
13 days ago
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يُعرَّف 炭 بأنه مادة عضوية ناتجة عن احتراق المواد الخشبية في غياب الأكسجين. يُستخدم الفحم الطبيعي على مدى القرون لعدة
https://fannieuyqv248143.digiblogbox.com/61082496/炭-概述其特性和用途
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