动词短语
中文翻译：齿轮传动
同义词：
['gearing', 'gear-up', 'gear-up operation']
例句：
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1. The new car has a high gear-up ratio, making it more efficient.
这款新车的齿轮传动比很高，使其更加高效。
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2. During the gear-up phase, the engine revs up to its maximum RPM.
在齿轮传动阶段，发动机转速达到最大。
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3. The engineer was gear-up for the project's completion.
工程师为项目的完成做好了准备。