名词中文翻译
中文翻译：外部相位齿轮
同义词：
['external gear', 'external gearing']
例句：
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1.The new model car has a more efficient internal combustion engine.
新款汽车拥有更高效的内燃机。
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2. The company's latest product is an external gear that can be easily replaced.
该公司的最新产品是一个可以轻易更换的外部齿轮。
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3. The engineer designed the external gear to ensure smooth operation of the machine.
工程师设计了外部齿轮，以确保机器的平稳运行。