aviation/ˌeɪvɪˈəɪʃn; ˌevɪ`eʃən/ n[U]1 science or practice of flying aircraft 航空学; 航空. 2 design and manufacture of aircraft 飞行器的设计与制造 [attrib 作定语]the aviation business/industry 飞机制造业.
牛津英汉双解词典