n.  航空，航空学；飞行（术）

n.  航空工业，飞机工业

• civil/military aviation  民用╱军用航空

• It uses the latest aviation technology.

  最新航空技术

• But there's still a long way to go. The Airlander will need to have 200 hours' flying time before being allowed to fly by the aviation administration. 航空管理局

BrE /ˌeɪviˈeɪʃn/

NAmE /ˌeɪviˈeɪʃn/