名词
中文翻译：穿孔螺旋桨
同义词：
['perforated screw propeller', 'perforatedscrew propeller', 'perforated screwpropeller']
例句：
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1. Theaircraft's propeller is made ofa perforated metal material.
飞机的螺旋桨是由一种穿孔金属材料制成的。
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2. Thepropeller was designed to improve the aircraft's efficiency.
螺旋桨的设计旨在提高飞机的效率。
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3. The propeller spins at high speeds, providing thrust for the aircraft.
螺旋桨以高速旋转，为飞机提供推力。