n. used as a lubricant and as a moderator in nuclear reactors
n. 石墨
[化] 石墨
1. Graphite is used in pencils to help us write.
石墨被用于铅笔中，帮助我们书写。
2. The artist chose graphite for his sketch because it is easy to erase.
这位艺术家选择石墨进行素描，因为它容易擦除。
3. Graphite can also be used in batteries to improve their performance.
石墨也可以用于电池中，以提高它们的性能。