avi·a·tion /ˌeviˈeʃən, ˌæ-/
航空,航空學,航空術
aviation
航空
A·vi·a·tion n. The art or science of flying.
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aviation
n 1: the aggregation of a country's military aircraft [syn: air
power]
2: the operation of aircraft to provide transportation
3: the art of operating aircraft [syn: airmanship]
4: travel via aircraft; "air travel involves too much waiting
in airports"; "if you've time to spare go by air" [syn: air
travel, air]