名词
中文翻译：反螺旋桨飞机
同义词：
['counterrotating propeller', 'contra-rotating propeller']
例句：
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1. The contrapropeller is acrucial component of the aircraft's design.
反螺旋桨是飞机设计中至关重要的部件。
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2. The contrapropeller was designed toimprove efficiency in low-speed flight.
反螺旋桨的设计旨在提高低速飞行的效率。
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3. Thecontrapropeller system has been shown toreduce noise and vibration during takeoff andlanding.
反螺旋桨系统已被证明在起飞和降落过程中能减少噪音和振动。