"black lead," 1796, from German Graphit, coined 1789 by German mineralogist Abraham Gottlob Werner (1750-1817) from Greek graphein "write" (see -graphy) + mineral suffix -ite. So called because it was used in making pencils. Related: Graphitic.
雙語例句
1. In graphite sheets, carbon atoms bond together in rings.
石墨層中的碳原子相互連接形成碳環(huán)。
來自柯林斯例句
2. Made from cast iron, it is finished in graphite enamel.
它是用鑄鐵制成，最后在外面搪了一層石墨。
來自柯林斯例句
3. A powerful electric current is passed through a piece of graphite.
給一塊石墨通入強(qiáng)電流。
來自柯林斯例句
4. The pistons are graphite-coated to reduce friction.
活塞上涂了一層石墨以減小摩擦力。
來自柯林斯例句
5. Graphite and even its linear counterpart, poly ( p - phenylene ) are too insoluble.