keyed jointing

例句：

1. 1. The engineer used a keyed jointing to connect the pipes together.
   工程师使用一种键接连接管道。
2. 2.The keyed jointing was strong enough to withstand the weight of the heavy machinery.
   这种键接连接足够坚固，能够承受重型机械的重量。
3. 3. The keyed jointing was designed to prevent leaks and ensure water flow.
   这种键接设计用来防止泄漏并确保水流。