jar coupling

例句：

1. 1. The jar coupling is a crucial component in the assembly process.
   罐耦合是组装过程中的关键部件。
2. 2. The engineer used a special tool to remove the jar coupling and replace it with a new one.
   工程师使用特殊工具来移除罐耦合并更换它。
3. 3.The jar coupling was designed to prevent leaks during transportation.
   罐耦合的设计是为了在运输过程中防止泄漏。