dead volume

例句：

1. 1. The room was so small that it felt like a dead volume.
   房间太小了，感觉就像一个死体积。
2. 2.The engineer calculated the dead volume of the engine to ensure optimal performance.
   工程师计算了发动机的死体积，以确保最佳性能。
3. 3.The team worked hard to reduce the dead volume in their workshop.
   团队努力工作以减少车间的死体积。