noun🔗Share尖晶石 Any of several hard minerals of cubic symmetry that are mixed oxides of magnesium and aluminium and are used as gemstones of various colours."The jeweler showed me a beautiful ring featuring a vibrant red spinel. "珠宝匠给我看了一枚漂亮的戒指，上面镶嵌着一颗鲜艳的红色尖晶石。mineralmaterialgeologyChat with AIVocabulary GamePractice Reading
noun🔗Share尖晶石， 尖晶石类矿物 Any crystalline material, not necessarily an oxide, that possesses the same crystal structure as this mineral."The scientist analyzed the new ceramic material and confirmed that it had a spinel structure, meaning its atoms were arranged in the same way as the magnesium aluminum oxide mineral. "那位科学家分析了这种新型陶瓷材料，并确认它具有尖晶石类矿物结构，这意味着它的原子排列方式与镁铝氧化物那种尖晶石矿物相同。materialmineralchemistrygeologysciencestructureChat with AIVocabulary GamePractice Reading
noun🔗Share纺纱废料，纺织纤维。 Bleached yarn in making the linen tape called inkle; unwrought inkle."The basket contained not just finished inkle tape, but also the spinel, the bleached yarn ready to be woven. "篮子里不仅有已经织好的英克尔织带，还有纺织用的漂白纱线 纺纱废料。materialitemChat with AIVocabulary GamePractice Reading
