超音波法液位元元元元元元测定
ultra-sonic method of liquid meaduremert
多进制数字调制
M-ary digital modulation
multi-decimal digital modulation
数字-数字数据变换器
digital-to-digital data converter
多模式数字调制器
multi mode digital modulator
等效数字调制信号源
equivalent digital modulated signal source
非线性数字调制
nonlinear digital modulation
数字调制
digital modulation
Channel
digital modulation technology
数字调制参数
Digital modulation quality parameters
数字调制解调
digital modulation demodulation
digital modulate and demodulate
数字调制解调系统
digital modulation and demodulation system