In summary, we point out the missing time delayed fractional derivative item of I1δ · g (x) τ pDpt
f (t) /k in Eq. (6) . Based on the corrected model, the effects of the fractional order index p and the delayed time τ on the temperature field are shown and discussed with a comparison of the corresponding results . It can be found that the obtained temperature variation and distribution here are different and even opposite with those , which results from the missing time delayed fractional derivative item of I1δ · g (x) τ pDpt
f (t) /k in Eq. (6) .