Distribution of the mean value of the difference between our results and the parameters of LAMOST DR8 in the T_eff−log ɡ plane. The three columns of subplots in the figure are the T_eff difference, the log ɡ difference, and the [Fe/H] difference (from left to right), and the four rows are the different [Fe/H] ranges (from top to bottom): [−3.0, −1.5), [−1.5, −0.6), [−0.6, −0.2), [−0.2, 0.2), and [0.2, 1.0]. Each dot in the figure represents the mean value obtained by summing the parameter difference of a grid with a Teff of 400k and a log ɡ of 0.5 dex size range and dividing it by the number of spectra, with the size of the dots representing the size of the difference, where red means that our results are larger than those published in LAMOST DR8 and blue means the opposite.