Amplifier design technology in recent years because of the progress achieved modulation methods possible. 1987 mid-term, QPSK modulation techniques such as linear only popular.是什么意思_Amplifier design technology in recent years because of the progress achieved modulation methods possible. 1987 mid-term, QPSK modulation techniques such as linear only popular.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句