transonic win1d tunnel

例句：

1. 1.The aircraft is designed to fly at transonic speeds.
   这架飞机设计成以超音速飞行。
2. 2.The jet engine produces a transonic sound.
   喷气发动机产生一种超音声。
3. 3. The rocket was launched at transonic velocity.
   火箭以超音速发射。