“four quadrant rectifier”的概念、定义、翻译、参考文献-科学参考

单词	four quadrant rectifier
释义	four quadrant rectifier Encyclopedia 工学轨道交通车辆电力电子变换设备释 four quadrant rectifier四象限整流器电动车辆上安装的可以将电能从交流接触网侧馈入到直流侧，也可以将电能由直流侧回馈到交流接触网的电力电子设备。又称PWM整流器。
随便看	dense ordering dense-output formula dense phase dense-phase pneumatic conveying dense plasma dense random packing dense rational mapping dense regular connective tissue dense ring dense ring of linear transformations dense set dense star cluster dense subalgebra dense subcategory dense subgroup dense subset dense suspension flow dense suspension up flow dense wavelength division multiplex dense wavelength division multiplexing dense wavelength division multiplexing, DWDM dense wavelength division multiplexing in metropolitan area network dense wavelength division multiplexing，DWDM densification densification by sand pile

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