路脈沖調(diào)制 pulse code modulation multiplex: 脈碼調(diào)制復用multiplex modulation: 多路通信調(diào)制,多路復用調(diào)制multiplex pulse: 多路脈沖pulse multiplex: 脈沖調(diào)制多路傳輸; 脈沖多路傳輸frequency division multiplex modulation: 頻分多路調(diào)制下載手機詞典可隨時隨地查詞查翻譯