servo
Word family nounservocontrolservomechanismservomotoradjectiveservomechanicalservo
ser·vo /ˈsɜːvəʊ $ ˈsɜːrvoʊ/ noun (plural servos) [countableC] technical a part of a machine which passes on or increases a force or movement 伺服系统,伺服动力传动装置 servo-assisted brakes 伺服辅助车装置