| 例句 |
The pistons are graphite coated to reduce friction.活塞上涂了一层石墨以减小摩擦。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。The pistons are graphite-coated to reduce friction.活塞上涂了一层石墨以减小摩擦力。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。A powerful electric current is passed through a piece of graphite.给一块石墨通入强电流。Graphite is found in this area.这个地区有石墨矿。 |