名词
中文翻译：Unknown
同义词：
['multiplier gear', 'multiplying gear']
例句：
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1.The engineer designed a multiplying gear to increase the efficiency of the machine.
工程师设计了一个乘数齿轮来提高机器的效率。
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2.The new model car has a multiplying gear that can be easily adjusted for different driving conditions.
新款汽车配备了一个可调节的乘数齿轮，以适应不同的驾驶条件。
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3. The scientist used a multiplying gear to test the effectiveness of his new invention.
科学家使用了一个乘数齿轮来测试他的新发明的有效性。