基本解释磁性伺服放大器词组短语短语balancing magnetic servo amplifier 释义自平衡磁伺服放大器self balancing magnetic servo amplifier 自平衡磁伺服放大器magnetic recording wire servo amplifier 磁性伺服放大器self -balancing magnetic servo amplifier [电子]自平衡磁伺服放大器