Applications of Model Stellar Atmospheres

In this paper,methods with which some important physical parameters are obtained by means of comparisons between model stellar atmosphere and measurement are reviewed.These physical parameters include,effective temp-rature T_eff surface gravity logg, chemical element abundance Xi,perturbation velocity ξ_t,stellar radius R,rotation velocity Ysini,angular diameter θ,mass M,luminosity L,and informations about stellar evolution.