During this time, I have been thinking about whether the space-time structure and gravitational constant are variables. Because many mistakes are unavoidable in the thinking process, the conclusions often change. In addition, in the process of thinking, I also discussed with some scholars and kept getting new ideas. Relevant theories and models are gradually determined. So, I wrote this paper to make a summary. I feel that what is relatively certain at present is the new space-time structure. This can be confirmed by correcting the change of the gravitational constant for the precession of Mercury's perihelion and the three-layer structure of the Milky Way. Although not strong, it is logically self-consistent. This article re-analyzes the data with specific time records such as BIPM-01, BIPM-14, JILA-10, UCI-14, HUST-09, HUST-18. The analysis results show that the experimental results have improved to a certain extent after considering the influence of the earth's orbit and Jupiter.