字典網>> 英漢字典>> D開頭詞條>>dual rate system的意思 漢英字典dual rate system中文翻譯：【經】 雙重運費制度, 雙重匯率制字典網字典網相關詞條：dual automorphism dual responsibility dual rates dual plan for standard costs dual-purpose column dual transmission duality theorem dual system dual-gap rewrite head dual frequency code