subsonic range

例句：

1. 1.The subsonic range of the aircraft is about 500 meters.
   飞机的亚音速范围大约是500米。
2. 2. The subsonic range is crucial for understanding the behavior of the Earth's atmosphere.
   亚音速范围对于理解地球大气的行为至关重要。
3. 3. The subsonic range is a critical factor in determining the speed of sound.
   亚音速范围是确定声速速度的关键因素。