Aviation has been the major source of revenue of the city.飞机制造业一直是这个城市财政收入的主要来源。
Ten years ago, they began to develop the aviation industry.十年前,他们开始发展航空工业。
Wright brothers were pioneers in aviation.莱特兄弟是航空学先驱。
They were pilots in the early days of aviation.他们是早期航空活动的飞行员。
Pilots of large aircraft are masters of aviation.大型飞行器的驾驶员是航空学方面的专家。
He devoted all his life to the cause of military aviation.他把一生都献给了军用航空事业。
