名词
中文翻译：Unknown
同义词：
['无挡传动装置，无挡驱动系统例句：1. The car has a cog-free wheel', 'which makes it easy to drive.（这辆车有无挡轮，使得驾驶变得容易。）']
例句：
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1. The car has a cog-free wheel, which makes it easy to drive.
这辆车有无挡轮，使得驾驶变得容易。
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2. The new transmission system in the car uses a cog-free wheel.
汽车中的新传动系统使用无挡轮。
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3. The engineer designed the machine with a cog-free wheel to improve efficiency.
工程师设计了一台机器，其无挡轮以提高效率。