noun🔗Share金刚砂, 刚玉砂 An impure type of corundum, often used for sanding or polishing."My grandfather used emery paper to smooth the rough edges of the wooden picture frame. "我的爷爷用金刚砂纸来打磨木制相框粗糙的边缘。materialgeologyChat with AIVocabulary GamePractice Reading
verb🔗Share用金刚砂打磨，用砂纸磨光。 To sand or polish with emery."The jeweler will emery the silver ring to make it shine. "珠宝匠会用金刚砂打磨这枚银戒指，让它闪闪发光。materialprocessutilityChat with AIVocabulary GamePractice Reading
verb🔗Share用金刚砂打磨，以金刚砂磨光 To coat with emery."The jeweler will emery the silver ring to remove the tarnish and give it a smooth finish. "珠宝匠会用金刚砂打磨这枚银戒指，以去除锈迹并使其表面光滑。materialtechnicalindustryChat with AIVocabulary GamePractice Reading
