preformed liner

例句：

1. 1. The new car has a preformed liner that protects the engine from damage.
   这款新车有一个预成型衬里，可以保护发动机免受损伤。
2. 2.The construction company used a preformed liner to reinforce the foundation of the building.
   这家建筑公司使用了预成型衬里来加固建筑物的基础。
3. 3. The engineer designed a preformed liner that could withstand high pressure and temperature conditions.
   这位工程师设计了一种能承受高压和高温条件的预成型衬里。