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炭:概述其特性和用途
pennyyxek287491
17 hours ago
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يُعرَّف 炭 بأنه مادة خشبية ناتجة عن احتراق المواد العضوية في غياب الأكسجين. يُستخدم الفحم الطبيعي على مدى السنوات لعدة
https://saadgyvp714501.angelinsblog.com/35684504/炭-概述其特性和用途
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