full duplex operationsimultaneous two-way operation同時: at the same time; simultaneo ...雙向操作: bidirectional operation雙工同時雙向操作: duplex simultaneous two way operation雙工同時雙向: duplex simultaneous two-way同時雙向通道: full-duplex channel下載手機詞典可隨時隨地查詞查翻譯