名词
中文翻译：无摩擦辊
同义词：
['smooth roll', 'friction-free roller例句：1. The smooth roll of the machine is essential for its efficient operation.（机器的平滑滚动对于其高效运行至关重要。）']
例句：
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1. The smooth roll of the machine is essential for its efficient operation.
机器的平滑滚动对于其高效运行至关重要。
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2.The friction-free roller reduces wear and extends the life of the machinery.
无摩擦滚轮减少了磨损，延长了机械的使用寿命。
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3.The new design uses a friction-free roller to improve accuracy and reduce maintenance costs.
新设计使用了无摩擦滚轮来提高精度并减少维护成本。