graphite cathode block

例句：

1. 1. The graphite cathode block is used in the production of graphite powder.
   石墨阴极块用于生产石墨粉。
2. 2. The graphite cathode block is an important component in the battery manufacturing process.
   石墨阴极块是电池制造过程中的一个重要组成部分。
3. 3. The graphite cathode block is typically made from high-purity graphite and coated with a thin layer of metal to improve its conductivity.
   石墨阴极块通常由高纯度的石墨制成，并涂覆一层薄金属以改善其导电性。