noun 下载 🔗分享 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. Examples : "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。 mineral material geology 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 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. Examples : "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。 material mineral chemistry geology science structure 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 纺纱废料，纺织纤维。 Bleached yarn in making the linen tape called inkle; unwrought inkle. Examples : "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。 material item 与AI对话词汇游戏阅读练习
