noun🔗Share알루미나, 산화 알루미늄Aluminum oxide, especially when used in mining, material sciences or ceramics."The ceramic mug is strong and heat-resistant because it's made with a high percentage of alumina. "세라믹 머그는 높은 비율의 알루미나로 만들어져 튼튼하고 내열성이 좋습니다.materialsubstancechemistryscienceindustryChat with AIVocabulary GamePractice Reading
