jacket passage

例句：

1. 1.The engineer designed a jacketed passage to protect the pipeline from damage.
   工程师设计了一个夹层通道来保护管道免受损坏。
2. 2.In the construction of the tunnel, the engineer used a jacketed passage to prevent water infiltration.
   在隧道建设中，工程师使用了夹层通道以防止水分渗透。
3. 3. The jacketed passage was crucial for maintaining the structural integrity of the tunnel during excavation.
   夹层通道对于保持隧道开挖过程中的结构完整性至关重要。