release cut-off valve

例句：

1. 1. The engineer released the cut-off valve to allow more air to flow through the system.
   工程师释放了截止阀，以便让更多的空气流过系统。
2. 2. The technician replaced the cut-off valve with a new one, ensuring that the system could operate smoothly.
   技术员用一个新的截止阀替换了旧的，确保系统可以顺畅运行。
3. 3. The plant needed to release the cut-off valve to prevent any potential leaks during maintenance.
   工厂需要释放截止阀以防止维护过程中可能出现的任何潜在泄漏。