small graphite

例句：

1. 1. This small graphite is used in the production of pencils.
   这种小石墨用于铅笔的生产。
2. 2. The graphite powder is a key material for making graphite paper.
   石墨粉是制作石墨纸的关键材料。
3. 3.Small graphite particles are used to make graphite electrodes.
   小的石墨颗粒被用来制造石墨电极。