名词
中文翻译：皮带轮
同义词：
['pulley', 'pulley wheel']
例句：
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1. The belt wheel is the part that connects the engine to the transmission.
皮带轮是连接发动机和变速器的部分。
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2. The belt wheel was designed to reduce friction and improve efficiency.
皮带轮的设计旨在减少摩擦并提高效率。
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3. The belt wheel was replaced after several years of use due to wear and tear.
由于磨损，皮带轮在几年的使用后被更换了。