短語詞組短語labour r efficiency 勞動效率labour efficiency variance 翻譯;[勞經(jīng)]勞動效率差異direct labour efficiency variance 直接人工效率差異;直接人工效益差異labour efficiency report [勞經(jīng)]勞動效率報告;翻譯;人工效率報告英語law of diminishing labour efficiency 勞動效率遞減律variance of direct labour efficiency 直接人工工效率差異efficiency of labour 勞動生產(chǎn)率;勞動效率increase efficiency of labour 提高勞動效率level efficiency of labour production 勞動生產(chǎn)率水平 返回 labour efficiency