在本例中，我们将介绍显示数据中心电源使用效率(PUE)的小部件。
In this example, we will be describing a widget that shows the power usage effectiveness (PUE) of a data center.
开关电源不断的小型化、轻量化和高效率，在电子设备中使用量越来越大，普及率越来越高。
Switching power supply is more widely used to electronic equipment with its miniaturization, lightness and high efficiency.
为了研究高性能、高效率的CO_2焊接电源系统，本文引入了逆变技术，并使用IGBT作为功率器件。
This paper introduces inverter technology and USES IGBT as power component to research high performance and high efficiency CO2 arc welding power source.
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