1. 航空路线：air jet 空气喷射 | air lane 航空路线 | air letter 航空信
2. 气廊：www.mapeng.net 马棚网 | air lane ==> 气廊 | air launch sounding rocket ==> 空中发射探测火箭
noun
1. a designated route followed by airplanes in flying from one airport to another
Synonym: flight path airway skyway