twin grinder

例句：

1. 1.The twin grinder is used to grind two pieces of metal together.
   双头磨床用于将两块金属磨在一起。
2. 2.The twin grinder is a crucial tool in the manufacturing process.
   双头磨床是生产过程中至关重要的工具。
3. 3. The twin grinder was used to produce high-quality steel products.
   双头磨床被用来生产高质量的钢材产品。