字典網>> 英漢字典>> D開頭詞條>>direct ratio formula的意思 漢英字典direct ratio formula中文翻譯：【經】 直接比率公式direct ratio formula字典網 相關詞條：directorial direct obligation direct trunking system direct reaction direct distance dialing direct electromotive force direct pickup direct diazo dye direct search method direct method of depreciation