名词
中文翻译：自由运行差动装置
同义词：
['free-running transformer', 'free-running generator']
例句：
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1. The free-running differential is used in the transmission system to improve efficiency.
自由运行差动装置用于传输系统中以提高效率。
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2.The free-running differential is a critical component of the power system.
自由运行差动装置是电力系统的关键组成部分。
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3. In this case, the free-running differential was responsible for the sudden drop in voltage.
在这种情况下，自由运行差动装置负责导致电压突然下降。