corundum
名词
英 [kə'rʌndəm] 美 [kə'rʌndəm]
基本释义
n.[矿]刚玉,金刚砂
词根词缀
前缀
cor
皮质，刚性的
+
词根
undum
金刚砂，刚玉
+
后缀
um
矿物，物质后缀
cor + undum + um = corundum
网络释义
a hard crystalline form of aluminum oxide, typically blue in color and used as a gemstone and abrasive.
Wiktionary英语原文词典
该词在Wiktionary英文原文中有详细的英文释义、词形变化、词源和词汇关系。
查看英文原文词典详情例句
1. Rubies and sapphires are both varieties of corundum.
红宝石和蓝宝石都是刚玉的变种。
2. Corundum is one of the hardest minerals known to man.
刚玉是已知的最硬的矿物之一。
红宝石和蓝宝石都是刚玉的变种。
2. Corundum is one of the hardest minerals known to man.
刚玉是已知的最硬的矿物之一。
实用场景例句
商务邮件
We are sourcing high-grade synthetic corundum for our upcoming line of industrial abrasives.
我们正在为即将推出的工业磨料系列采购高等级的合成刚玉。
学术写作
Corundum is characterized by its exceptional hardness, ranking nine on the Mohs scale.
刚玉以其极高的硬度为特征，在莫氏硬度表上排名第九。
旅游出行
The local museum exhibits stunning corundum crystals mined from the nearby mountains.
当地博物馆展出了从附近山脉开采的令人惊叹的刚玉晶体。
日常对话
Did you know that sapphires and rubies are actually just different colored varieties of corundum?
你知道蓝宝石和红宝石其实只是不同颜色的刚玉吗？
社交媒体
Look at this gorgeous raw corundum I bought at the gem market today! 💎✨ #gemstone
看看我今天在宝石市场买的这块华丽的天然刚玉！💎✨ #宝石
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