low-low pressure switch

例句：

1. 1. The low-pressure switch is used to control the flowof gases in the pipeline.
   低压开关用于控制管道中气体的流动。
2. 2. The low-pressure switch is essential for maintainingsafe operation of the plant.
   低压开关对于保持工厂安全运行至关重要。
3. 3. The low-pressure switch isdesigned to detect and prevent potentialhazards in the process.
   低压开关设计用来检测和预防生产过程中的潜在危险。