单词 | graphite |
释义 | graph·ite ![]() n. A soft crystalline allotrope of carbon, composed of graphene layers, having a steel-gray to black metallic luster and a greasy feel, used in lead pencils, lubricants, paints and coatings, and fabricated into a variety of forms such as molds, bricks, electrodes, crucibles, and rocket nozzles. Also called black lead, plumbago. [Greek graphein, to write; see gerbh- in the Appendix of Indo-European roots + -ITE1.] gra·phitic (gră-fĭtĭk) adj. |
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