tunnel cleaning vehicle

例句：

1. 1. The tunnel cleaning vehicle is used to remove debris from the tunnel.
   隧道清洁车用于清除隧道内的杂物。
2. 2. The tunnel cleaning vehicle was designed to be compact and efficient.
   隧道清洁车设计紧凑且高效。
3. 3. The tunnel cleaning vehicle uses a vacuum system to clean the tunnel.
   隧道清洁车使用真空系统来清洁隧道。