two shear ram

例句：

1. 1. The shear ram is used to cut through tough materials.
   剪切机用于切割坚韧的材料。
2. 2. The shear ram was the first machine to use electricity as a power source.
   剪切机是第一台使用电力作为动力源的机器。
3. 3.The shear ram was used to remove the outer layer of the material.
   剪切机被用来去除材料的外层。