常見例句雙語例句The former realizes steady transmission of signal by testing and analysing the carrier channel's frequency characteristic .前者是通過對載波信道的頻率特性時變性測試、分析，實現(xiàn)信號平穩(wěn)傳輸。Analog modulation carrier signal amplitude, frequency, or phase change with the analog input signal to the pre transmission and corresponding occurrence change modulation method.模擬調(diào)制是載頻信號的幅度、頻率或相位隨著預(yù)傳輸?shù)哪M輸入信號的變化而相應(yīng)的發(fā)生變化的調(diào)制方法。 返回 carrier frequency signal transmission