Electrical conductivity, . (Units of CT−1L−2−1.)
Surface separation, d, or surface pressure, p.
Average temperature, .
Average value of the first field variable, .
Average value of the second field variable, .
Etc.
Repeat this data line as often as necessary to define the dependence of gap electrical conductance on the surface separation, average surface temperature, and the average of any predefined field variables on the surfaces.