tube shield

例句：

1. 1. The engineer designed a special tube shield to protect the pipeline from damage.
   工程师设计了一个特殊的管壁保护罩来保护管道免受损坏。
2. 2.The new design of the tube shield has greatly improved its durability.
   新设计的管壁保护罩大大提高了其耐用性。
3. 3. The tube shield is essential for preventing leaks in the pipeline system.
   管壁保护罩对于防止管道系统中的泄漏至关重要。