ring plugging

例句：

1. 1. The ringplugging technique is used toseal off leaks in pipelines.
   环形封堵技术用于管道中的泄漏封堵。
2. 2. The engineer used a ring pluggingdevice to repair the damaged pipe.
   工程师使用一个环形封堵装置来修理损坏的管道。
3. 3. The ring plugging process involves tightening a ring around the pipe to preventfurther leakage.
   环形封堵过程涉及在管道周围紧固一个环形圈以防止进一步泄漏。