Select frequency amplifier in this paper constitute LPF(Low-Pass Filter) and HPF(High-Pass Filter).It is easy to adjust and to design because there is less parameter.是什么意思_Select frequency amplifier in this paper constitute LPF(Low-Pass Filter) and HPF(High-Pass Filter).It is easy to adjust and to design because there is less parameter.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句