graphite floatation

例句：

1. 1.The graphite floatation process is used to separate impurities from the ore.
   石墨浮选法用于从矿石中分离杂质。
2. 2. The graphite floatation technology has greatly improved the purity of the graphite.
   石墨浮选技术大大提高了石墨的纯度。
3. 3. In graphite floatation, the graphite particles are separated from the other minerals in the ore.
   在石墨浮选过程中，石墨颗粒与其他矿物从矿石中分离出来。