joint liner

例句：

1. 1. The engineer designed the joint liner to fit perfectly into the hole.
   工程师设计了接头衬里，完美地嵌入孔中。
2. 2. The joint liner was used to prevent leaks in the pipeline.
   接头衬里被用来防止管道泄漏。
3. 3.The joint liner is made of high-quality materials to ensure durability and strength.
   接头衬里由高质量的材料制成，以确保耐用性和强度。