名词
中文翻译：转换器
同义词：
['convertor', 'converter', 'transducer', 'transformer']
例句：
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1. The converteris used to convert the electrical energy into mechanical energy.
转换器用于将电能转换为机械能。
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2. The converter was designed to improve efficiency in power transmission.
转换器被设计用来提高电力传输的效率。
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3.The converter is a crucial component of the power grid.
转换器是电网的关键组成部分。