relative metric

• 相对度量

relative metric的用法和样例：

例句

1. The effective permeability is a relative measure of the conductance of the porous medium for one fluid phase when the medium is saturated with more than on fluid.
   有效渗透率是在多孔介质被多种流体饱和时，对单一流体相孔隙介质传导性的相对度量。