agraphitic carbon

例句：

1. 1.The graphite is a graphitic carbon that is used in the production of pencils.
   石墨是一种用于制造铅笔的石墨碳。
2. 2.The agraphitic carbon is used to make graphite.
   石墨碳被用来制造石墨。
3. 3. The agraphitic carbon is used as an additive in the production of graphite.
   石墨碳作为添加剂用于生产石墨。