DTMF Dual Tone Multiple Frequency
dual frequency echo sounder data
Dual frequency Electromagnetic Shaping
dual frequency excitation
dual frequency IP instrument SQ3
dual frequency IP method
error removed using dual frequency observations
onboard dual frequency GPS
same frequency tone masking test
multi-frequency
多频
外频脉波
多频卫星
多频电码
混合频率
多频嗓声
多频激励
多倍频率
多频电路
混响
倍频
多波段
多频段
多频发电机
dual peak dual wavelength method
dual qualitative and dual quantitative similarity method
Dual-column-dual-detector
gas chromatography coupled with dual columns and dual electron capture detectors
multi wave and multi component
the multi mode and multi column chromatographic system
audio frequency and video frequency processing
correlation in frequency domain and frequency domain