[en] The energies and transition probabilities of the atomic systems are calculated by Grasp-92 Utility. Based on the local thermal equilibrium theory and the data of 058 experiment of the inertial confinement fusion (ICF), with Ar + D₂ filled target pellet, the temperature and density of plasmas in target pellet of ICF are calculated and they are 804.7 eV, 8.39 x 10²³ cm^-3 respectively, the results agree well with that of other calculations. (authors)