单词 | graphite |
释义 | graph·iteBrE /ˈɡræfaɪt/ NAmE /ˈɡræfaɪt/ noun [U ]a soft black mineral that is a form of carbon is used to make pencils, to lubricate. Graphite is used to make pencils , to lubricatemachinery and in nuclear reactors .石墨 |
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