airvoid

例句：

1. 1.The engineer found an air void in the wall that needed to be filled.
   工程师在墙上发现了一个需要填充的空气空隙。
2. 2. During the flight, the pilot noticed a small air void between the plane and the ground.
   飞行期间，飞行员注意到飞机与地面之间有一个小的空气空隙。
3. 3. The scientist discovered an air void in the atmosphere, which could affect weather patterns.
   科学家在大气中发现了空气空隙，这可能会影响天气模式。