low-pressure section

例句：

1. 1.The low-pressure section is where the air is moving quickly and the temperature is lower.
   低压区是空气流动快且温度较低的区域。
2. 2.In the low-pressure section, the air pressure is much lower than at the surface.
   在低压区，空气压力远低于表面。
3. 3. The low-pressure section is often used for aircraft to reduce fuel consumption.
   低压区常用于飞机上以减少燃油消耗。