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炭:概述其特性和用途
sashacbrp115970
5 days ago
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يُعرَّف فحم بأنه مادة وخشبية ناتجة عن احتراق المواد العضوية في غياب الكمية الكافية من الأكسجين. يُستخدم الفحم الطبيعي
https://safakuke673589.blogscribble.com/profile
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