短語(yǔ)詞組短語(yǔ)Cost -efficiency 有經(jīng)濟(jì)效率的;成本效率;成本效益cost -efficiency inquiries 本錢效益領(lǐng)悟production cost and efficiency 生產(chǎn)成本與效益maximum cost -efficiency 資金效益最大化 返回 cost efficiency