短語詞組短語gallon per unit of volume 每單位容積加侖power per unit of volume 單位容積功率load per unit of volume 單位體積的含量unit volume of tax 單位稅額weight of unit volume 單位體積重量theory of unit volume change 單位體積應(yīng)變理論specific resistance of unit volume 容積比電阻ambient volume unit of measure 環(huán)境體積計(jì)量單位 返回 unit of volume