accentuatorfrequency selected amplifierfrequency selecting amplifierfrequency selection amplifierfrequency selective amplifierfrequency-selecting amplifierselective amplifier选: select; choose; pick频: frequent放大器: amplifier; pantograph; lawnm ...【无线电】选频放大器。: selective amplifier阻容式选频放大器: cr selective amplifier下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:选频放大器,即可在微信中查询翻译