dc power supply convertor
dc power supply convertor
直流电源转换器
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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DC DC convertors can convert the EV's high voltage DC power supply into the low voltage DC power supply. In order to design an excellent convertor one must be guided by theory of automatic control.
为了设计出在电动汽车上把高压直流电源变换成低压直流电源的高品质DC DC变换器，采用自动控制理论进行指导。
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