multiple phase equilibration
nucleus division phase frequency
phase frequency characteristic
phase frequency characteristics
phase frequency detector
phase frequency spectrum
phase lock
锁相
锁
相锁
数
相位同步
锁相技术
相位锁定
锁相法
锁柑
同步
同相
self-intensity of binding phase phase
double tone multiple frequency
DTMF Dual Tone Multiple Frequency
Multiple frequency auditory steady-state response
multiple frequency observer