picking up shaft frequency
propeller shaft frequency
Shaft-frequency electric field
Extraction of shaft frequency
inherent frequency of the shaft line
Middle frequency-frequency convertor
eddy current shaft-displacement and shaft-vibration monitor
half built up crank shaft [= semi-built-up crank shaft
longitude shaft and latitude shaft
vertical shaft fulcrum shaft sleeve
audio frequency and video frequency processing
Belgium OSB double frequency(work-intermediate frequency) Queching machine
correlation in frequency domain and frequency domain
cyclic frequency-spectrum frequency domain
deteeting the ground point with low frequency electric current signal changing its frequency
double frequency(low intermediate frequency) Queching machine
flashing frequency， critical flicker frequency
FMVFT Frequency Modulated Voice Frequency Telegraph