商业飞行执照要求更灵活的掌握无线电导航及全球定位系统。
A commercial pilot's license requires you to learn how to use more sophisticated radio navigation and global positioning systems (GPS).
私人飞行执照要求掌握小型飞机的无线电导航。
A private pilot's license gives you training in visual and radio navigation of a small plane.
私人飞行执照要求掌握小型飞机的无线电导航。
A private pilot's license gives you training in visual and radio navigation of a small plane.
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