Distribution functions of key molecular species for the fiducial model in the two-dimensional space of ﹩\{{\mathrm{log}}_{10}T\}\times \{{v}_{r}\}﹩ (common logarithm of temperature and radial velocity). The mass distribution function is normalized as ﹩{d}^{2}\,m/[d{\mathrm{log}}_{10}(T/{\rm{K}})d({v}_{r}/\mathrm{km}\ {{\rm{s}}}^{-1})]﹩, i.e., mass of the species per dex-temperature per ﹩({v}_{r}/\mathrm{km}\ {{\rm{s}}}^{-1})﹩.