"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.
实用例句
1. In graphite sheets, carbon atoms bond together in rings.
石墨层中的碳原子相互连接形成碳环。来自柯林斯例句
2. Made from cast iron, it is finished in graphite enamel.
它是用铸铁制成，最后在外面搪了一层石墨。来自柯林斯例句
3. A powerful electric current is passed through a piece of graphite.
给一块石墨通入强电流。来自柯林斯例句
4. The pistons are graphite-coated to reduce friction.
活塞上涂了一层石墨以减小摩擦力。来自柯林斯例句
5. Graphite and even its linear counterpart, poly ( p - phenylene ) are too insoluble.
