[電學] 脈沖頻率解調 pulse demodulation: 脈沖解調frequency demodulation: 鑒頻; 頻率解調pulse code demodulation: 脈碼解調demodulation carrier frequency control: 解調載頻控制frequency pulse: 頻率脈沖下載手機詞典可隨時隨地查詞查翻譯