low clearance

• 低空

low clearance的用法和样例：

例句

1. A jet plane shrieked low overhead.
   飞机在头顶上方尖声低空飞行。
2. They were flying at a low altitude.
   他们在做低空飞行。
3. Therefore, the polar stratospheric height will be lower, because the polar surface temperature is relatively low.
   所以，极地的平流层会于较低高度出现，因为极地的地面气温相对较低。
4. The radar system allows the aircraft to fly at low altitudes and therefore reach the drop zone undetected.
   雷达系统允许飞机在较低高度飞行，然后到达未被发现的空投地区。