ambient air sample的用法和樣例：
例句
- The developed technique is applied to ambient air and automobile exhaust analysis.
將研究所得的技術應用於環境空氣和汽車廢氣的分析。 - Elements which influence the urban traffic air, we design a index system and construct the grey decision model to assess the Quality of the air.
分析城市交通環境空氣影響因素，設計一套評價指標體系，並建立了環境大氣質量評價的灰色決策模型。
