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炭:概述其特性和用途
fraserwmuv675210
- 1 hour 10 minutes ago
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يُعرَّف فحم بأنه مادة خشبية ناتجة عن احتراق المواد الخشبية في غياب الكمية الكافية من الأكسجين. يُستخدم الفحم الطبيعي
https://lilysbir101382.blogdal.com/37155878/charcoal-an-overview-of-its-properties-and-uses
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