“emery”的概念、定义、翻译、参考文献-科学参考

单词	emery
释义	emery Chemistry A rock composed of corundum (natural aluminium oxide, Al₂O₃) with magnetite, haematite, or spinel. It occurs on the island of Naxos (Greece) and in Turkey. Emery is used as an abrasive and polishing material and in the manufacture of certain concrete floors. Geology and Earth Sciences A greyish-black variety of corundum (Al₂O₃) which can be crushed and powdered for use as an abrasive for polishing hard surfaces.
随便看	Bok, Bart Jan Bok globule Bolden, Charles, Jr (1946– ) Boleyn, Anne (1501–36) Bolger, James Brendan (1935) bolide Bolindian Bolingbroke, Henry of Bolingbroke, Henry St John, 1st Viscount (1678–1751) Bolivarian Alliance for the Peoples of Our America Bolivia bolometer bolometric correction bolometric magnitude Bolshevik bolson Boltwood, Bertram Borden Boltwood, Bertram Borden (1870–1927) Boltzmann constant Boltzmann constant(symbol: k) Boltzmann equation Boltzmann formula Boltzmann, Ludwig (1844–1906) Boltzmann, Ludwig Eduard (1844–1906) Boltzmann, Ludwig Edward

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