return air meaning in English
回风
回流空气
回路空气
回气
回用空气
Examples
- Fast driving method of west main return air roadway in shihe mine
寺河矿井西总回风大巷快速施工法 - Delivery and return air temperature
送风及回风温度 - Standard return air passage
标准来回航空旅费 - If you don t want to include the one - way return air ticket , you can deduct 65
如选择不含单程机票，团费可扣除65 。 - Problems and its solution of main return air system of beiminghe iron mine
北氵名河铁矿主回风系统存在问题及解决措施