alumina /ә'lu:minә/ 📖 中文释义 n. 矾土[化] 矾土; 氧化铝 🔗 释义中的汉语词 矾土氧化铝 🧩 词形变化 复数 aluminas 📘 English Definition(英文释义) n. any of various forms of aluminum oxide occurring naturally as corundum ← alumin floc A 字母词表 alumina base catalyst →