constant quantity การใช้

This is done by dividing each variable by corresponding constant quantities.
Organic materials supply these in varying amounts and not in such constant quantities as the inorganic fertilisers.
Such constant quantities include feed input rate, output stream rates, heating and cooling rates, reflux ratio, and temperatures, pressures, and compositions at every point ( location ).
The ability to control the frequency of emission of a constant quantity of the composition permits the user to compensate for the size of the room, the airflow and the number of occupants as may be desired,
In 1819 they found that volumetric heat capacities were not quite constant, but that the most constant quantity was the heat capacity of solids adjusted by the presumed weight of the atoms of the substance, as defined by Dalton ( the Dulong Petit law ).