specially made gasket

例句：

1. 1.The special gasket on the engine prevents leaks.
   发动机上的特别密封垫防止泄漏。
2. 2. This special gasket is designed to fit perfectly in the hole.
   这个特别的密封垫设计得能完美地适配在孔中。
3. 3. The mechanic replaced the old gasket with a new one to fix the leak.
   机械师用一个新的替换了旧的密封垫来修复泄漏。