基本解释冲压空气涡轮英英字典柯林斯英英字典 a small air-driven turbine fitted to an aircraft to provide power in the event of a failure of the normal systems ram air turbine剑桥字典ram air turbine柯林斯字典专业释义航空、航天科学技术冲压式空气涡轮冲压空气涡轮