pressure gauge with back connection

例句：

1. 1.The pressure gauge is used to measure the pressure of the gas.
   压力计用于测量气体的压力。
2. 2. The pressure gauge shows that the temperature is increasing.
   压力计显示温度正在上升。
3. 3.The pressure gauge is a crucial tool for monitoring industrial processes.
   压力计是监测工业过程的关键工具。