descending air的用法和樣例：
例句
- The descent warms the air and its relative humidity accordingly drops.
這種下沉使空氣變暖，其相對溫度相應下降。 - The third wind belt develops as cold polar air sinks and moves south, is deflected to the right, and is therefore called the polar easterlies.
當冷的極地的空氣下沉并且移動(dòng)南方，受科氏力影響偏向右邊，因此被稱(chēng)為極地東風(fēng)帶。
