频率: frequency; rate频率控制: alter cycle control; frequency control频率控制器: frequency controller本机频率控制: local frequency control长线频率控制: long-line frequency control负荷频率控制: load-frequency control负载频率控制: load frequency control恒定频率控制: constant frequency control; flat frequency control可变频率控制: vfc variable frequency control频率控制电路: frequency control circuit频率控制回路: frequency control loop人工频率控制: manual frequency control手动频率控制: manual frequency稳态频率控制: steady state frequency control; steady-state frequency control选择频率控制: selective frequency control音叉频率控制: tuning-fork frequency control增量频率控制: incremental frequency control中心频率控制: center frequency contro重复频率控制: repetition-rate control自动频率控制: afc active field control; automatic freqency control; automatic frequenccy control; automatic frequency cintrol; automatic frequency cotrol; automatic-frequency-control; control, automatic frequency (afc)表控制程序: table-driven program带控制程序: tape control unit控制程序: ccontrol program; control procedures; control process; control program(cp); control routine; control sequence; controlling process; directing operation; ole automation server ole automation; sequence of control控制程序读: control program read (cread)控制程序键: control program key