名词
中文翻译：可变螺距螺旋桨
同义词：
['variable pitch propeller', 'variable pitch screw propeller']
例句：
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1. Thevariable pitch propeller is an important component of the aircraft's control system.
可变螺距螺旋桨是飞机控制系统中的一个重要组成部分。
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2. The variable pitch propeller allows the aircraft to fly at different altitudes and speeds.
可变螺距螺旋桨使飞机能够在不同的高度和速度飞行。
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3.The variable pitch propeller has been developed to improve fuel efficiency and reduce noise pollution.
可变螺距螺旋桨的开发旨在提高燃油效率并减少噪音污染。