upwind gear

例句：

1. 1.The wind was upwind, so the sails were set to catch the strongest breeze.
   风向是顺风，所以帆被设置来捕捉最强的风。
2. 2. The pilot used upwind gear to navigate through the fog.
   飞行员使用顺风装置在雾中导航。
3. 3.Upwind gear is essential for a successful cross-country skiing trip.
   顺风装置对于一次成功的越野滑雪旅行至关重要。