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炭:概述其特性和用途
philipuapy115695
3 days ago
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يُعرَّف 炭 بأنه مادة عضوية ناتجة عن احتراق المواد العضوية في غياب الهواء. يُستخدم الفحم الطبيعي على مدى الفترة الطويلة
https://royavih962798.sasugawiki.com/user
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