生产人造金刚石聚晶所需的石墨片和石墨模是用石墨棒加工的。

Graphite blade and graphite mould used in the production of synthetic polycrystalline mass are made from graphite bar.

youdao

生产人造金刚石聚晶所需的石墨片和石墨模是用石墨棒加工的。

Graphite blade and graphite mould used in the production of synthetic polycrystalline mass are made from graphite bar.

youdao