名词中文翻译1
中文翻译：Unknown
同义词：
['roll bearing', 'ball bearing']
例句：
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1.The new car has a ball-bearing engine.
这款新车搭载了球轴承发动机。
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2.The engineer used a ball-bearing to replace the old gears.
工程师用一个球轴承来替换旧的齿轮。
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3.The ball-bearing is designed to reduce friction and improve efficiency.
球轴承的设计旨在减少摩擦并提高效率。