名词
中文翻译：滚动轴承轴
同义词：
['rolling bearing axle', 'roller bearing shaft']
例句：
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1. Thenew car has a roller bearing axle that makes it run smoothly.
这辆新车有一个滚动轴承轴，使得它运行平稳。
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2. The engineer used a roller bearing axle to reduce friction and increase efficiency.
工程师使用一个滚动轴承轴来减少摩擦并提高效率。
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3. The old machine had a roller bearing axle that was prone to wear and tear.
旧机器有一个容易磨损的滚动轴承轴。