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炭:概述其特性和用途
jeanlvms510184
3 days ago
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يُعرَّف 炭 بأنه مادة خشبية ناتجة عن احتراق المواد العضوية في غياب الكمية الكافية من الأكسجين. يُستخدم الفحم الطبيعي على
https://mayajzre375112.bloggadores.com/35713538/炭-概述其特性和用途
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