字典網>> 英漢字典>> D開頭詞條>>direct material usage variance的意思 漢英字典direct material usage variance中文翻譯：【經】 直接材料用量差異direct material usage variance相關詞條：direct digital controller direct securities directive rules directly grounded Direct Diazo Black BH direct contact seal directory management directed aldol condensation direct-current meter directional coupler