名词
中文翻译：安静的齿轮
同义词：
['quiet gear', 'silent gear例句：1. The quiet gear in the engine is essential for smooth operation.（发动机中的静音齿轮对于平稳运行至关重要。）']
例句：
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1. The quiet gear in the engine is essential for smooth operation.
发动机中的静音齿轮对于平稳运行至关重要。
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2. The silent gear system allows for precise control of the vehicle's speed and direction.
静音齿轮系统允许精确控制车辆的速度和方向。
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3. The new design incorporates quiet gear technology to reduce noise levels in the cabin.
新设计采用了静音齿轮技术，以减少舱内噪音水平。