ms(lnT2−lnT1)\mathrm{ms}\left(\ln \mathrm{T}_{2}-\ln \mathrm{T}_{1}\right)ms(lnT2−lnT1)
ms(lnT1−lnT2)\mathrm{ms}\left(\ln \mathrm{T}_{1}-\ln \mathrm{T}_{2}\right)ms(lnT1−lnT2)
msln(T2−T1)\mathrm{ms} \ln \left(\mathrm{T}_{2}-\mathrm{T}_{1}\right)msln(T2−T1)
msln(T1−T2)\mathrm{ms} \ln \left(\mathrm{T}_{1}-\mathrm{T}_{2}\right)msln(T1−T2)