controlled airspace短语¹³¹⁶²⁰⁺³ 基本例句 管制空域 Ensures the safe and efficient movement of aircraft in controlled airspace and aerodromes by directing aircraft movements. Registration or licensing is required. 在飞行区域内或飞机场，指挥飞行，确保飞机安全有效飞行，要求有注册或许可证。 flyabroadvisa