短語詞組短語voice frequency amplifier 音頻放大器Voice Frequency Amplifier VFA 音頻放大器VFA Voice Frequency Amplifier 音頻放大器stereoscopic voice amplifier 立體聲放大器voice gain adjusting amplifier 語音增益調節(jié)放大器VA Voice Amplifier 語音放大器voice -frequency amplifier 音頻放大器Wireless Voice Amplifier 無線音頻放大器VGAA Voice Gain Adjusting Amplifier 語音增益調節(jié)放大器 返回 voice amplifier