The phase-locked system is a closedloopautomaticcontrolsystem that can follow the frequency and phase of the input signals.
锁相系统是一个能够跟踪输入信号频率和相位的闭环自动控制系统。
2
The controlsystem is composed of the engine controlautomatic shifting control, torque converter lockup closed-loop control, and shift quality control etc.