  Within the framework of an isospin-dependent quantum molecular dynamics
model, the zero-range 2-body part of the Skyrme interaction is replaced by a
finite-range Gaussian 2-body interaction. From the transverse momentum analysis
in the reaction of system $^{93}$Nb + $^{93}$Nb at energy of 400 MeV/nucleon
and impact parameter $b$=3 fm, it is shown that the finite-range nuclear force
enhances the transverse momentum of the reaction system and it can partly
replace the momentum dependent part of the nucleon-nucleon interaction.
