名词
中文翻译：无扭自由模块
同义词：
['torsion-free structure', 'torsion-free system', 'torsion-free configuration']
例句：
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1. The design of the new machine is torsion-free, which greatly improves its efficiency.
新机器的设计是无扭的，这大大提高了其效率。
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2. The torsion-free module is a key component in the design of the new machine.
无扭模块是新机器设计的关键组成部分。
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3. The torsion-free module can be used to reduce the weight and size of the machine.
无扭模块可以用来减少机器的重量和尺寸。