cutter-loader bar

例句：

1. 1.The machine is designed to cut through tough materials with ease.
   这台机器设计用来轻松切割坚硬的材料。
2. 2. The operator must be trained in the safe use of this tool.
   操作员必须接受培训，学会安全使用这种工具。
3. 3. This bar is used as a guide for cutting precise pieces of metal.
   这个棒子用于精确切割金属片。