名词
中文翻译：变速降低同义词
同义词：
['variation', 'speed reduction']
例句：
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1. The car's variadle-speed lowering system helps to improve fuel efficiency.
汽车的变速降低系统有助于提高燃油效率。
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2. During the race, the driver used his variadle-speed lowering to gain an advantage.
比赛中，驾驶员利用他的变速降低来获得优势。
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3. The engineer adjusted the variadle-speed lowering to match the vehicle's acceleration requirements.
工程师调整了变速降低以匹配车辆的加速需求。