automatic frequency-load regular controller
automatic load frequency control
automatic load-frequency control
automatic frequency reguktion
automatic frequency load shedding
autoinatic frequency follow-up
automatic frequency analyzer
automatic frequency cintrol
automatic frequency compensation
Automatic Frequency Control
自动频率控制
自动频率控制自动频率调整
微型计算机MEK6800D2
频率自动控制
自动频率控制接收机
Automatic Frequency Control (AFC )
automatic frequency control characteristic
automatic frequency control generator
甲脲(MMU)
自动频率控制产生器
自动频率控制振荡器
automatic frequency control receiver
automatic frequency control system
automatic frequency control transformer
Automatic Frequency Conversion
automatic frequency converter
automatic frequency correction