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
自动频率控制接收机
频率自动控制
微型计算机MEK6800D2
automatic frequency control characteristic
automatic frequency control generator
自动频率控制产生器
自动频率控制振荡器
甲脲(MMU)
automatic frequency control receiver
automatic frequency control system
automatic frequency correction
automatic frequency corrector
automatic frequency fine control pull-in time
automatic frequency scanning
automatic frequency tracking
automatic frequency tuner
automatic system
自动化系统
自动系统
自动测试系统
自动化控制
综合自动化系统
自治系统
白动化系统
Automatic system design
Automatic System for Hydrological Data Acquisition and Transmission
automatic system for office
automatic system of hydrologic data collection and transmission
Automatic System of Hydrological Data Acquisition
Automatic System of Hydrological Data Acquisition and Transmission