  A system of a metastable phase with several sorts of the heterogeneous
centers is considered. An analytical theory for the process of condensation in
such a system is constructed in dynamic conditions. The free energy of
formation of the critical embryo is assumed to be known in the macroscopic
approach as well as the energy of solvatation. The recurrent procedure of the
establishing of the characteristic times and lengths is presented. The
semiempirical method of the description of the period of essential formation of
new phase embryos on the heterogeneous centers of some sort is given.
