名词中文翻译1
中文翻译：Unknown
同义词：
['1. pre-selected gearbox 2.pre-selection gearbox 3. pre-selection gear box']
例句：
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1.The preselective gear box is a crucial component in the engine's performance.
预选择式齿轮箱是发动机性能的关键部件。
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2.The engineer had to replace the preselective gear box due to its age.
工程师不得不更换这个预选择式齿轮箱，因为它已经过时了。
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3. The preselective gear box was designed to improve fuel efficiency and reduce emissions.
预选择式齿轮箱的设计目的是为了提高燃油效率和减少排放。