graphite

IPA/ˈɡræfaɪt/
KK[ɡrˈæfˌaɪt]IPA/ˈɡræfaɪt/

graphite — 名詞

1. a soft grey-black mineral made from pure carbon. Graphite is what makes the dark

1.名詞B2
釋義

石墨

鉛筆筆芯所用的軟質灰黑色碳礦物

a soft grey-black mineral made from pure carbon. Graphite is what makes the dark mark when you draw with a pencil, and it is also used to help machine parts slide smoothly and inside some nuclear reactors.

例句

Paloma sharpened her pencil and a small pile of graphite dust fell onto the desk.

Paloma 把鉛筆削尖，一小撮石墨粉末落到桌面上。

uncountable noun: graphite dust

The artist preferred soft graphite for shading because it left a darker, smoother line.

這位畫家偏好使用軟質石墨來打陰影，因為線條較深也較柔順。

collocation: soft graphite

常見搭配
  • graphite pencil
  • graphite powder
  • graphite dust
  • soft graphite
  • natural graphite
同義詞
  • plumbago

    old-fashioned and technical name for the same mineral; rarely used today outside mineralogy texts

  • black lead

    historical British term; learners may meet it in older novels but it is misleading because no lead is involved

用法筆記

Almost always uncountable; you say 'a piece of graphite' or 'graphite powder', not 'a graphite'. The plural 'graphites' only appears in technical writing about different grades of the material.

常見錯誤

The pencil is made of lead.
The pencil is made of graphite.
modern pencils have never contained lead; the dark core is graphite mixed with clay.
I bought two graphites at the art shop.
I bought two graphite pencils at the art shop.
graphite is uncountable, so count the object that contains it instead.

同根字

  • graphitic
    形容詞C2
  • graphitize
    動詞C2

常見搭配

名詞搭配

  • graphite pencil
  • graphite powder
  • graphite dust
  • graphite rod
  • graphite electrode

常用片語

  • a piece of graphite
  • natural graphite
  • synthetic graphite

介系詞搭配

  • graphite in (pencils, reactors)
  • made of graphite