upper air analysis

例句：

1. 1. The upper air analysis showed that thepollution levels were high in the city.
   上部空气分析显示，该市的污染水平很高。
2. 2. The scientists conducted an upper airanalysis to study the effects of the chemicalspill.
   科学家们进行了上部空气分析，以研究化学泄漏的影响。
3. 3. The upper air analysisrevealed that there was a significant increase incarbon dioxide levels.
   上部空气分析显示，二氧化碳水平显著增加。