pipe valve tray

例句：

1. 1. The pipevalve tray is used to control the flowof oil in the pipeline.
   管道阀门托盘用于控制管道中油的流动。
2. 2. The pipevalve tray was designed to prevent leaksand ensure safe operation.
   管道阀门托盘被设计用来防止泄漏并确保安全操作。
3. 3. Thepipe valve tray was installed at the endof the pipeline to monitor the pressure.
   管道阀门托盘安装在管道末端以监测压力。