graphitoidal

例句：

1. 1.The graphite is used in the production of pencils and graph paper.
   石墨用于制造铅笔和绘图纸。
2. 2. The graphite is a type of mineral that is found in nature.
   石墨是一种自然存在的矿物类型。
3. 3.The graphite industry is an important part of the global economy.
   石墨产业是全球经济的重要组成部分。