flat velocity profile

例句：

1. 1.The aircraft's flight path is characterized by a flat velocity profile.
   飞机的飞行路径特征是平直的速度剖面。
2. 2.The engineer designed the flat velocity profile to optimize fuel efficiency.
   工程师设计了平直速度剖面以优化燃油效率。
3. 3. The flat velocity profile helps reduce drag and increase lift.
   平直速度剖面有助于减少阻力并增加升力。