backpressure regulator

例句：

1. 1.The back pressure regulator is responsible for maintaining the proper pressure in the system.
   背压调节器负责保持系统中适当的压力。
2. 2.The engineer used a back pressure regulator to prevent the leakage of gas.
   工程师使用了一个背压调节器来防止气体泄漏。
3. 3.The back pressure regulator was designed to handle high pressure and temperature conditions.
   背压调节器被设计用来处理高压和高温条件。