rotor oscillation

例句：

1. 1. The aircraft's rotor is making a loud noise.
   飞机的转子正在发出噪音。
2. 2. The rotor oscillation causes the aircraft to lose altitude.
   转子振动导致飞机失速。
3. 3. The engineer analyzed the data to determine the cause of the rotor oscillation.
   工程师分析数据以确定转子振动的原因。