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 displayed several rings featuring vibrant red spinels alongside the rubies. " 珠宝匠展示了几枚戒指,上面镶嵌着鲜艳的红色尖晶石,与红宝石相映生辉。 mineral geology material 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 尖晶石 Any crystalline material, not necessarily an oxide, that possesses the same crystal structure as this mineral. Examples : "Many synthetic gemstones, like those used in inexpensive jewelry, are manufactured with spinels due to their similar crystalline structure and durability. " 许多人造宝石,比如廉价珠宝中使用的那些,由于其晶体结构相似且耐用,所以用尖晶石结构材料制造。 material mineral geology chemistry 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 纺织用漂白纱线,未织成的英克尔织带 Bleached yarn in making the linen tape called inkle; unwrought inkle. Examples : "The weaver used the spinels to begin creating the linen inkle for a new loom project. " 纺织工匠用这些纺织用漂白纱线开始制作新的织布机项目所需的亚麻英克尔织带。 material industry 与AI对话词汇游戏阅读练习