短語詞組短語servo -amplifier 伺服放大器;伺服增幅器traverse servo power amplifier 方位伺服功率放大器servo o amplifier 伺服放大器servo control amplifier [自]伺服控制放大器;伺服控制放大器英語servo power amplifier 伺服功率放大器elevation servo power amplifier 頫仰伺服功率放大器servo loop amplifier 伺服廻路放大器bearing servo amplifier [電子]方位伺服放大器PSA Pitch Servo Amplifier 頫仰伺服放大器 返回 servo amplifier