upwind effect

例句：

1. 1.The wind is blowing from the northwest, creating an upwind effect on the city's skyline.
   风从西北吹来，对城市的天际线产生了上升气流效应。
2. 2. The upwind effect can help to reduce the amount of pollutants in the air.
   上升气流效应可以帮助减少空气中的污染物。
3. 3. The updraft caused by the rising sun creates a natural upwind effect on the landscape.
   太阳升起时产生的上升气流自然地影响了景观。