دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a device for increasing the magnitude of a quantity such as an electrical measurement signal. Amplifiers may be used to increase a transmitted and received measurement signal.

n: a device consisting of a sensing element. a power device, and an amplifier that is used to automatically control a mechanical device. The power device is usually called a servomotor.

n: A kind of packed hole assembly.It can join directly two square collars,or join role-wheel amplifier in the middle of two square collars.