体积 tǐjī HSK5 volume Origin Definitions Defs Strokes Stroke Words Sentences Sents 体积单位 tǐjīdānwèi unit of volume a measurement unit used to express the extent of three-dimensional space occupied by an object体积百分比 tǐjībǎifēnbǐ percentage by volume the proportion of the volume of a substance relative to the total volume of a mixture