名词
中文翻译：平衡装置
同义词：
['balance shaft', 'balance linkage', 'counterweight']
例句：
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1. The balance gear is crucial for maintaining the stability of the vehicle.
平衡齿轮对于保持车辆的稳定性至关重要。
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2.The engineers designed a new balance gear to improve the efficiency of the machine.
工程师们设计了一种新的平衡齿轮，以提高机器的效率。
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3. The balance gear was used to adjust the speed of the motor.
平衡齿轮被用来调整电机的速度。