- open air
 - n. 露天,户外
adj. 露天的;野外的 
同义词
           
       参考例子
           - 1.The pump exhaust should lead to the open air or a fume hood.
 - 抽气泵的排气管应该导向室外空旷处或导向一座通风橱。
 
- 2.Turn off supply pressure and observe float drop to open air inlet.
 - 关闭供应压力,观察浮子下降,因此开启空气进口。
 
- 3.Use the spray-mount out in the open air only, as the mist will get onto all surfaces nearby, including your lungs.
 - 喷雾粘胶仅可在户外使用,因为喷出的雾液会附着在附近所有物体的表面上,包括你的肺。
 
英文解释
           - n.
 - 1.where the air is unconfined
 - 2.in the open air
 
网络释义
               - open air
 - 露天地方; 露天; 户外; 户外的;
 
- Open-air
 - 露天的、开启的; 露天 户外 开启式; 初始的、原始的; 露天 户外 开启式;
 
- open-air Mass
 - 露天弥撒;
 
- open-air theater
 - 露天剧场;
 
- open-air swimming
 - 露天游泳池;