safety relief and pressure relief valves

例句：

1. 1. The safety relief valve is designed to prevent overpressure in the system.
   安全释放阀设计用来防止系统中的超压。
2. 2. Pressure relief valves are used to release pressure from a system when it exceeds its designlimits.
   压力释放阀用于在系统超过其设计极限时释放压力。
3. 3. In this case, the pressure relief valve was responsible for releasing excess pressure from the pipeline.
   在这种情况下，压力释放阀负责从管道中释放过量的压力。