fore line valve

例句：

1. 1. The fore line valve is used to control the flow of gases through the pipeline.
   前部阀门用于控制气体通过管道的流动。
2. 2. The engineers were tasked with installing the fore line valve at the new plant.
   工程师们被指派在新的工厂安装前部阀门。
3. 3. The fore line valve was designed to prevent leaks and ensure safe operation of the system.
   前部阀门的设计旨在防止泄漏并确保系统的安全运行。