middle crusher

例句：

1. 1. The middle crusher is used to crush materials in the middle of the material flow.
   中碎机用于在物料流动中间部位破碎物料。
2. 2. The central crusher is responsible for crushing large rocks into smaller pieces.
   中央破碎机负责将大块岩石破碎成小块。
3. 3.In the construction industry, the middle crusher plays a crucial role in breaking down large blocks of stone.
   建筑业中，中碎机在破碎大石块方面起着至关重要的作用。