短語(yǔ)詞組短語(yǔ)Unit words of time 時(shí)間單位詞per unit of time 單位時(shí)間current per unit of time 不過其每單位電流時(shí)間revolution per unit of time 單位時(shí)間轉(zhuǎn)數(shù)blood volumeper unit of time 單位時(shí)間血容量unit of work -time 工時(shí)單位Generalized cost of unit time 單位時(shí)間成本amount of unit time services 單位時(shí)間服務(wù)量Cofficient of unit working time 機(jī)組時(shí)間系數(shù) 返回 unit of time