The technological development and achievements of the switched-mode power supply (SMPS)using in the telecommunication system in the 20th century were reviewed.是什么意思_The technological development and achievements of the switched-mode power supply (SMPS)using in the telecommunication system in the 20th century were reviewed.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句