名词
中文翻译：Unknown
同义词：
['multistage gearbox', 'multispeed transmission']
例句：
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1. The car has a multilevel gearbox that allows for easy shifting between different speeds.
这辆车有一个多级变速器，可以轻松地在不同的速度之间切换。
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2.The engineer designed the new multilevel transmission to improve efficiency and reduce wear.
这位工程师设计了新的多级传动系统，以提高效率并减少磨损。
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3. The multilevel transmission is used in heavy-duty trucks to provide smoother acceleration and better fuel economy.
多级传动系统被用于重型卡车中，以提供更平滑的加速和更好的燃油经济性。