atmospheric transparency

例句：

1. 1. The air quality in this areais significantly lower than the national average.
   该地区的空气质量明显低于全国平均水平。
2. 2. The weatherforecast indicated a clear sky with good atmospheric transparency.
   天气预报显示天空晴朗，大气透明度好。
3. 3. Thecity's air pollutionhas been a major concern foryears, affecting atmospheric transparency.
   多年来，该城市的空气污染一直是主要问题，影响了大气透明度。