名词
中文翻译：水银直流变压器
同义词：
['hydraulic transformer', 'direct current transformer']
例句：
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1. Themercury DC transformer is used to convert alternating current (AC) into direct current (DC).
水银直流变压器用于将交流电转换为直流电。
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2.In power systems, the mercury DC transformer is often used as a step-up or step-down device.
在电力系统中，水银直流变压器通常用作升压或降压设备。
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3.The mercury DC transformer is essential for maintaining the stability of the power grid.
水银直流变压器对于保持电网的稳定性至关重要。