名词
中文翻译：导管螺旋桨
同义词：
['ducted fan', 'ducted propulsion system']
例句：
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1.The ducted propeller is a crucial component of the aircraft's engine.
导管螺旋桨是飞机引擎的关键部件。
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2.The ducted propeller has been optimized for efficiency and performance.
导管螺旋桨已经优化以提高效率和性能。
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3. The ducted propeller was designed to reduce noise and improve stability during takeoff.
导管螺旋桨被设计来减少噪音并提高起飞时的稳定性。