It is seen that the present model cannot differ from the cold dark matter model by v − UFM and v − UWM. W − baryon matter v − WBM can form clusters of dark matter and dark galaxies [3 , $^{4]}$. There possibly are such celestial bodies which are composed of mixture of F − matter and W − matter because both have positive gravitational masses. This is a decisive predict of the present model and mirror dark matter model. Dark celestial bodies flying to the earth are possibly detected by probing gravity-meters of clustering dark matter $^{[4]}$. It can be seen from (13) and figures 1 − 3 that the energy of F − matter can transform into the energy of W − matter by such a process in which the reaction energy is high enough. According to the cosmological model without singularity, there are s − matter and v − matter which are symmetric and have oppose gravitational masses. In V − breaking s − matter is similar to dark energy to cause expansion of the universe with an acceleration now, and v − matter is composed of v − F − matterv and v − W − matterv which are symmetric and have the same gravitational masses . The ratio of s − matter to v − matter is changeable. Based on the cosmological model, we confirm that big bang nucleosynthesis is not spoiled 9 VI. CONCLUSIONS FIG. 3: f + f −→ w + w realized by the two-loop diagram.