through shut-off valve

例句：

1. 1. The technician had to shut off the valve to prevent further damage.
   技术人员不得不关闭阀门以防止进一步损坏。
2. 2. The power plant uses a shut-off valve to control the flow of water.
   发电厂使用一个关闭阀来控制水流。
3. 3. The engineer replaced the shut-off valve with a new one, ensuring smooth operation.
   工程师用一个新的关闭阀替换了旧的，确保了顺利运行。