amount per unit volume

area per unit volume

average quantity used in unit volume blasted

bearing capacity of unit volume concrete

charge per unit volume

divition of “super unit combine—super unit—unit”

Effective radiation area on unit volume

Gibbs free energy per unit volume

per unit volume

per unit volume concentration

principle， unit record

probability per unit volume of waveform space

representative volume unit RVU

surface area per unit volume

theory of unit volume change

Unit Record

unit record card

unit record device

unit record equipment