orographic drag

例句：

1. 1. The mountainous terrain caused significant orographic drag on the aircraft's wings.
   山区的地形对飞机的机翼产生了显著的地形阻力。
2. 2. The wind's direction was influenced by the orographic drag of the mountains.
   风的方向受到了山脉的地形阻力的影响。
3. 3. The scientists used a model to predict the effect of orographic drag on the airflow.
   科学家们使用了一个模型来预测地形阻力对气流的影响。