A multi-server retrial queue with a hyper-exponential service time is considered in this paper. The study is performed by the method of asymptotic diffusion analysis under the condition of long delay in orbit. On the basis of the constructed diffusion process. we obtain approximations of stationary probability distributions of the number of customers in orbit and the number of busy se... https://thegreensjunglebeautyshops.shop/product-category/powder-foundation/