vertical-knife divider

例句：

1. 1.This vertical-knife divideris very useful for cutting through thick materials.
   这个垂直切割器对于切割厚材料非常有用。
2. 2. The engineer used the vertical-knife divider to cut themetal sheet into precise pieces.
   工程师使用垂直切割器将金属板材切成精确的片状。
3. 3. During construction, the vertical-knife divider was essential forensuring the safety of workers.
   在施工过程中，垂直切割器对于确保工人的安全至关重要。