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炭:概述其特性和用途
matteodzby973887
2 hours 2 minutes ago
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يُعرَّف 炭 بأنه مادة عضوية ناتجة عن احتراق المواد العضوية في غياب الأكسجين. يُستخدم الفحم الطبيعي على مدى الفترة
https://haarisrgjg661274.qodsblog.com/36692178/charcoal-an-overview-of-its-properties-and-uses
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