sealed hydraulic coupling

例句：

1. 1.The sealed hydraulic coupling ensures that the machinery can operate smoothly even under high pressure.
   密封液压接头确保机器即使在高压下也能顺畅运行。
2. 2. The engineers used a special tool to remove the seal and replace it with a new one.
   工程师们使用特殊工具来拆卸密封并更换新的。
3. 3. The sealed hydraulic coupling is an essential component of the industrial pump system.
   密封液压接头是工业泵系统的一个关键部件。