短語(yǔ)詞組短語(yǔ)polynomial frequency modulation signal 多項(xiàng)式調(diào)頻信號(hào)frequency modulation signal 調(diào)頻信號(hào)keying frequency modulation signal 鍵控調(diào)頻信號(hào)linear frequency modulation signal 線性調(diào)頻信號(hào)tg frequency modulation signal 正切調(diào)頻信號(hào)nonlinear frequency modulation signal 非線性調(diào)頻信號(hào)noise frequency modulation signal 噪聲調(diào)頻信號(hào)linearity frequency modulation signal 線性調(diào)頻信號(hào) 返回 modulation signal frequency