The project of switch power supply not only meets the needs of electron gun,but also reduces the volume of power supply greatly,and the work efficiency of electron gun is advanced by it.是什么意思_The project of switch power supply not only meets the needs of electron gun,but also reduces the volume of power supply greatly,and the work efficiency of electron gun is advanced by it.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句