seat cutter

例句：

1. 1. The carpenter used a saw to cut the wooden seats for the chairs.
   木匠用锯子给椅子的木制座位开槽。
2. 2. The engineer designed a new seat cutter that would make assembly much easier.
   工程师设计了一种新型的座椅切割器，使装配过程更加简便。
3. 3. The policeman used his seat cutter to remove the burglar's fingerprints from the door.
   警察使用他的座椅切割器从门上清除了窃贼的指纹。