容积 róngjī capacity Origin Definitions Defs Strokes Stroke Words Sentences Sents 容积率 róngjīlǜ floor area ratio The ratio of a building's total floor area to the size of the piece of land upon which it is built容积效率 róngjīxiàolǜ volumetric efficiency volumetric efficiency, a measure of how effectively an engine or pump can move fuel, air, or liquid through its cylinders