英语词汇“corundum”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	corundum
释义	corundum /keuh run"deuhm/, n. a common mineral, aluminum oxide, Al₂O₃, notable for its hardness: transparent varieties, as sapphire and ruby, are used as gems, other varieties as abrasives: often made synthetically. [1720-30; < Tamil kuruntam; akin to Skt kuruvinda ruby]
随便看	nautical archaeology. nautical day nautical mile nautilus nautophone nav. NAV Navaho navaid Navajo naval naval academy naval architecture naval brass naval mine Naval Observatory naval stores Nav. Arch. Navarino Navarre nave Nav. E. navel navel ill navel orange

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