名词
中文翻译：旋转不稳定
同义词：
['rotational instability', 'rotor instability', 'rotor unstability']
例句：
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1. Thehelicopter's rotor blades were severely damaged during the crash.
直升机的旋翼在坠毁时严重受损。
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2.The aircraft's rotor was found to be faulty after the test flight.
试飞后发现飞机的旋翼有故障。
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3.The new model car has a more stable rotation than its predecessor.
新款汽车的旋转比前款更稳定。