n.自旋；自动旋转；（飞机的）滚翻

Autorotation is a fundamental principle in helicopter flight, allowing the aircraft to descend safely in the event of engine failure.
自动旋转是直升机飞行的基本原理，使得飞机在发动机故障时能够安全下降。
In autorotation, the rotor blades continue to turn due to the air flowing through them, generating lift.
在自动旋转中，旋翼叶片因空气流过而继续转动，产生升力。
The pilot must enter autorotation by lowering the collective pitch to maintain rotor RPM.
飞行员必须通过降低总距杆来进入自动旋转状态，以维持旋翼转速。
Autorotation is a skill that every helicopter pilot learns as part of their emergency training.
自动旋转是每位直升机飞行员在应急训练中必学的技能。
During an autorotative descent, the pilot uses the cyclic to control the rate of descent and direction.
在自动旋转下降过程中，飞行员使用周期变距杆控制下降速度和方向。
Autorotation is initiated by feathering the engine, which disconnects it from the rotor system.
启动自动旋转时，会将发动机置于空转状态，使其与旋翼系统脱离连接。
The success of autorotation depends on the pilot's ability to maintain proper rotor speed and glide slope.
自动旋转的成功依赖于飞行员保持适当的旋翼速度和下滑轨迹的能力。
Autorotation is a testament to the helicopter's inherent safety features and the ingenuity of its designers.
自动旋转是直升机固有安全特性和设计者智慧的证明。
In an emergency, autorotation can turn a potentially catastrophic situation into a controlled landing.
在紧急情况下，自动旋转能将可能的灾难性情况转变为可控着陆。
The autorotation landing technique requires precise control inputs and a thorough understanding of aerodynamics.
自动旋转着陆技巧需要精确的控制输入和对空气动力学的深入理解。