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炭:概述其特性和用途
deborahgxil287473
1 day 21 hours ago
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يُعرَّف 炭 بأنه مادة عضوية ناتجة عن احتراق المواد العضوية في غياب الكمية الكافية من الأكسجين. يُستخدم الفحم الطبيعي على
https://lancebpiy373410.wannawiki.com/user
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