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炭:概述其特性和用途
nelsondcbh499250
2 days ago
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يُعرَّف 炭 بأنه مادة وخشبية ناتجة عن احتراق المواد العضوية في غياب الكمية الكافية من الأكسجين. يُستخدم الفحم الطبيعي
https://theokpfy940325.blogadvize.com/44492612/charcoal-an-overview-of-its-properties-and-uses
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