noun
unit weight; weight per unit volume
Technical term used in engineering and physics to express the weight of a substance per unit volume. Equivalent to density multiplied by gravitational acceleration.
土の単位体積重量を測定する。
Measure the unit weight of the soil.
この材料の単位体積重量は水より大きい。
The unit weight of this material is greater than that of water.
密度 (density) is mass per unit volume, while 単位体積重量 is weight per unit volume, which includes the effect of gravity.
Compound of 単位 (unit), 体積 (volume), and 重量 (weight).