| 单词 | graphite |
| 释义 | Word Frequency graphite(ˈɡræfaɪt) noun a blackish soft allotropic form of carbon in hexagonal crystalline form: used in pencils, crucibles, and electrodes, as a lubricant, as a moderator in nuclear reactors, and, in a carbon fibre form, as a tough lightweight material for sporting equipment Also called: plumbagoDerived forms graphitic (ɡrəˈfɪtɪk) adjective Word origin C18: from German Graphit; from Greek graphein to write + -ite1 |
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