Airway
01
航空公司, 航线
a commercial enterprise that provides scheduled flights for passengers
02
呼吸道, 气道
the anatomical structures, including the nose, mouth, throat, and lungs, that allow for the passage of air during breathing
03
通风管道, 气道
a duct that provides ventilation (as in mines)
04
航线, 空中走廊
a designated route followed by airplanes in flying from one airport to another
