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炭:概述其特性和用途
mattiesubx318085
1 day 7 hours 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://barrytwdn151941.atualblog.com/43008306/炭-概述其特性和用途
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