fine polishing

例句：

1. 1.The engineer used a fine polishing machine to smooth the surface of the metal.
   工程师使用一台精细抛光机来平滑金属的表面。
2. 2. Fine polishing is essential for achieving high-quality finish on a product.
   精细抛光对于产品达到高质量表面至关重要。
3. 3.During the final stage of polishing, the workpiece is carefully moved to achieve the desired finish.
   在抛光的最后阶段，工件被小心移动以达到所需的表面效果。