名词
中文翻译：分数齿轮同义词
同义词：
['fractional gear', 'fractional gearing']
例句：
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1. The engine's performance depends on the proper selection of fractional gears.
发动机的性能取决于正确选择分数齿轮。
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2. The new design uses fractional gears to improve efficiency.
新设计使用分数齿轮来提高效率。
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3. The gearbox is designed with fractional gears to reduce noise and vibration.
齿轮箱设计有分数齿轮以减少噪音和振动。