turret flap

例句：

1. 1. The engineers were busy working on the turret flap.
   工程师们忙于修理炮塔门盖。
2. 2.The new model aircraft has a turret flap that can be adjusted for different flight conditions.
   新型飞机的炮塔门盖可以调整以适应不同的飞行条件。
3. 3. The turret flap was designed to improve airflow and reduce drag during takeoff.
   炮塔门盖的设计旨在改善起飞时的气流并减少阻力。