ullmannite /'ʌlmә,nait/ 📖 中文释义 n. [矿]锑硫镍矿 📘 English Definition(英文释义) n. A brittle mineral of a steel-gray color and metallicluster, containing antimony, arsenic, sulphur, and nickel. ← Ullmann's line U 字母词表 ulloa →