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炭:概述其特性和用途
deweyyyml608999
2 hours 36 minutes ago
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يُعرَّف 炭 بأنه مادة عضوية ناتجة عن احتراق المواد الطبيعية في غياب الهواء. يُستخدم الفحم الطبيعي على مدى الفترة الطويلة
https://charlievlfq305494.loginblogin.com/44353282/charcoal-an-overview-of-its-properties-and-uses
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