autogiro

1. An autogiro is supported in flight by unpowered rotating wings.
   旋翼机在飞行中是靠无动力旋转式机翼来支持的。
2. Various schemes were put forward in order to make rotorcraft fly faster, such as compound helicopter, ABC-type helicopter, tilt-rotor aircraft, autogiro, and so on.
   为了让旋翼飞行器飞得更快，人们想出了种种方案，包括复合式直升机、ABC旋翼式、倾转旋翼飞行器和自转旋翼飞行器等。
3. The technical measures mainly contain reducing drag and increasing lift. Ultimately, the aerodynamic layout design of autogiro high-speed scheme is completed.
   通过研究分析，采取减阻、增升等技术措施，最终完成了旋翼机高速型方案的气动布局设计。

noun

1. an aircraft that is supported in flight by unpowered rotating horizontal wings (or blades)

   Synonym:    autogyrogyroplane