However, the modulation - demodulation of ultraviolet and voice transmission are the key technologies.然而, 紫外光通信的 调制解调技术 以及语音传输是整个系统的关键难点.FM receiver through demodulation , the frequency signals into sound signals.调频接收机通过...
However, the modulation - demodulation of ultraviolet and voice transmission are the key technologies.然而, 紫外光通信的 调制解调技术 以及语音传输是整个系统的关键难点.Introduce and analyze the key module of demodulation technologies, for example NCO ...
If farm-yard manure is used it must be well rotted.如果使用农场的粪肥, 必须让它完全腐烂。Yard sale shopper Larry Sutton pauses with purchases in Trenton , Ga.乔治亚州特伦顿市场的一位摊主在摊位旁稍作休息.Tonya screamed when she saw a snake slither across the ya...