Which is conducive to air flow and circulation. 有利於大氣的流通擴散。
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。
The ambient air over the city is becoming worse. 該城市上空周圍的空氣在惡化。
The air around him felt dank and airless. 周圍的空氣陰濕寒冷，也不流通。
The air was still as if a whirlwind had just passed. 周圍空氣異常安靜，好像剛剛刮過一陣旋風。
Ensure there is a free flow of air around the machine. 要確保機器周圍空氣暢通。
