graphite
US /ˈɡræf.aɪt/
UK /ˈɡræf.aɪt/
1.
흑연
a gray, crystalline, allotropic form of carbon that occurs as a mineral in some rocks and can be made from coke. It is used as a lubricant, a moderator in nuclear reactors, and as the material for making the 'lead' in pencils.
:
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Pencil 'lead' is actually made of graphite and clay.
연필심은 사실 흑연과 점토로 만들어집니다.
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Graphite is an excellent conductor of electricity.
흑연은 훌륭한 전기 전도체입니다.