名词短语
中文翻译：低至高速变换
同义词：
['speed change', 'gear shift', 'gear shift']
例句：
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1.The car's low-high speed change is very smooth and easy to use.
这款车的低至高速变换非常平滑且易于使用。
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2. During the race, the driver must quickly switch between high and low gears for optimal performance.
比赛中，驾驶员必须迅速在高低速档之间切换，以获得最佳表现。
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3. The new transmission has a low-high speed change that allows for seamless shifting between different driving conditions.
新型变速器具有低至高速变换功能，能够无缝地在不同驾驶条件下进行换挡。