difference in pressure

• 压力差

difference in pressure的用法和样例：

例句

1. Difference of pressure makes a liquid flow through a siphon.
   压力差使得液体通过虹吸管。
2. The pressure control systems provide cabin differential pressure by controlling the outflow of air from the faselage.
   压力控制系统通过控制机外气流来提供客舱压力差。