名词
中文翻译：滚动接触齿轮
同义词：
['rolling gear', 'rolling shaft', 'rolling bearing']
例句：
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1. The newcar has a smooth and responsive steering system with rolling contact gears.
这款新车拥有平滑且响应灵敏的转向系统，配有滚动接触齿轮。
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2. The machine's design incorporates rolling contact gears to improve efficiency.
该机器的设计中融入了滚动接触齿轮，以提高效率。
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3.The engineer explained that the rolling contact gears are crucial for the machine's smooth operation.
工程师解释说，滚动接触齿轮对于机器的平稳运行至关重要。