字典網>> 英漢字典>> D開頭詞條>>duplex pump的意思 漢英字典duplex pump中文翻譯：【化】 雙聯泵字典網字典網字典網相關詞條：duplex computer duplex system duplex communication line duplex line duplexed duplex filter duplex plunger pump duplex pull rod duplex communication duplex piston pump