phi PMMA,mu / m2/(Vs),Error 4.06E-05,-7.04E-10,1.99E-11 1.36E-04,-7.29E-10,2.77E-11 4.16E-04,-7.06E-10,3.84E-11 1.37E-03,-7.15E-10,2.06E-11 4.16E-03,-5.21E-10,4.21E-11 ,,