HFR High Frequency Resistor
HFO High Frequency Oscillator
HFC High Frequency Current
HFC High Frequency Choke
HFBT High Frequency Boolean Test
HFAA High Frequency Airborne Antenna
HFA High Frequency Amplifier
HF Doppler frequency shift with high precision
HDLM High level Data Linkage Module
fully digital high frequency induction heating sys
FREQUENCY DOMAIN HIGH DENSITY ELECTRIC METHOD
Frequency converter with high voltage
Frequency Conversion High Pressure Foaming Machine
fluctuating high frequency voltage signal injection